Bricklayer, I am in agreement with you but there are some points I think you are missing and some that you are presenting illogically. Take them or leave them but I state them just to get your thoughts...
1. If you are discussing his merits as an All-NBA player, his age means nothing (literally at least). Comparing him to other similarly aged years is also dirty bath water given how the game has changed recently (players leaving college earlier, etc).
2. I think the major sticking point that most people have with Cousins and his season is that great centers make great teams. You posted a bunch of centers with seasons similar to Cousins and I bet all those teams were good to great. Historically, if you have a "HOF" center, you are in the playoffs easily, and most likely talking championship. The fact that the Kings are so bad is what leads people to hesitant that Cousins is that good (or that he is doing something that prevents what matters... winning games).
A valid assertion. But if people are going to make that argument about Cuz then they have to make the same one about Anthony Davis, Dwight Howard, Kevin Love, Lamarcus Aldridge (overrated by my estimation but still highly regarded by pundits across the league), Pau Gasol, Zack Randolph, Chris Bosh, just about any big man in the league not named Tim Duncan, who had the luxury of landing on a team already starring one of the greatest big men to ever play the game.
What about the past, you say?
Hakeem Olajuwon entered the league in 1984 on a team that ultimately lost in the first round of the playoffs. One important note on that one: While he was awesome, the Dream was not the alpha dog (or even the best big man on his team that season) of the Rockets, that honor resting on the shoulders of one mister Ralph Sampson (22.1 ppg/10.4 rpg/2.7 apg/1 spg/2 bpg), who came into the league a monster before ultimately sucking as a Sacramento King years later. A year later, the Rockets reach the NBA finals but are bested by the Celtics, with Hakeem taking the reigns (23.5 ppg/11.5rpg/2 apg/2 spg/ 3.4 bpg) but Ralph Sampson (18.9 ppg/11.1 rpg/3.6 apg/1.3 spg/1.6 bpg) leading a balanced scoring attack behind him. (Coincidentally, they pummelled the Sacramento Kings in the first round, our only playoff appearance until 1996.) In other words, while the Rockets were obviously bad enough to be in a position to draft one of the best to ever play, they still boasted a bunch of pieces to make up a solid supporting cast AND a front office that wasn't actively trying to sell assets for a potential move to Anaheim/Virginia Beach/Anywhere but Sacramento.
Kevin Garnett came into the league as a 19 year old small forward (even then, Minnesota's front office wasn't sure what to do with its talents) and, while solid and displaying lots of raw potential, did not propel his team past a 29 win season. The next season, the Wolves managed to sneak into the playoffs behind the trio of Garnett (17 ppg/8 rpg/3.1 apg/1.4 spg/2.1 bpg), the Googs in his single all-star season (20.6 ppg/8.7 rpg/4.1 apg/1.6 spg/1.1 bpg), and rookie Starbury (15.8 ppg/2.7 rpg/7.8 apg/1 spg/.3 bpg). Alongside this "Big Three", the T-Wolves boasted a solid group of veteran role players like Sam Mitchell, Terry Porter, and even Dean Garrett. While that isn't exactly the greatest core in the world, it's still world's ahead of the Demarcus/Reke/twenty shooting guards group that Petrie put together for the first several seasons (aside from the one promising season Petrie traded Hawes for Dalembert). The next season, the Wolves also made the playoffs with the addition of Anthony Peeler, whom we all know would later go on to fight KG in the playoffs. One could argue that KG wasn't able to carry a team into the playoffs until the 1999 season, his fourth in the league during which the team made an ill-fated move for Joe Smith and lost the services of Starbury. Even then, KG was surrounded by complementary pieces and players that knew their roles (In other words, not Aaron Brooks).
Tim Duncan, while an absolute stud, wound up playing with one of the best teams in the league out of the gates thanks to a masterful tank job by the Spurs. I'd go into details but I'm pretty sure we all know them by now.
Moses Malone is a little harder to profile as he played a few years in the ABA before joining the Houston Rockets at the tender age of 22 and averaging 13.2 ppg, 13.1 rpg, 1.1 apg, .8 spg, 2.2 bpg. That team (the 76-77 Rockets) made it to the Eastern conference finals but were led by Rudy T and Calvin Murphy (coincidentally listed as the same size as IT) rather than Moses. Even that core could not repeat the campaign going into the next season, finishing a disappointing 28-54 (though a lot of that had to do with Rudy missing most of the season after one of the most infamous moments in sports history) with Moses putting up 19.4 ppg, 15 rpg, .5 apg, .8 spg, 1.3 bpg. The next season, Moses truly came alive and led the Rockets back tot he promised land of the playoffs where they lost to the Hawks in the first round. That season, at the ripe old age of 23, Moses averaged a cool 24.8 ppg, 17.6 rpg, 1.8 apg, 1 spg, 1.5 bpg in 41 minutes a game. Even then, Moses boasted a supporting cast featuring Rudy T, Rick Barry, and Calvin Murphy, one of those guys probably better than most of our roster put together. Featuring some variation of this supporting cast plus a big man who was second only to Lew at this point, the Rockets were able to make it all the way to the Finals in 1981 before Moses left and they engaged in a quick rebuilding effort in which they eventually would acquire Hakeem. Meanwhile, in his first season on the Sixers, Moses won the NBA finals on a team that featured some dude named Doctor J, Andrew Toney, and Mo Cheeks before he became a terrible basketball coach. In other words, his supporting cast was flippin' bad***.
I think you're starting to get the picture but since I don't want to actually get anything done at work today, I'll go on.
Shaq joined the Orlando Magic at the age of 20 and promptly led them to a 41-41 season with a staggering statline of 23.4 ppg, 13.9 rpg, 1.9 apg, .7 spg, 3.5 bpg. The Magic did not make the playoffs despite the monster season from Shaq, a 20 ppg season from Nick Anderson (also good at basketball before winding up a miserable waste of space on the Kings), and excellent role playerly seasons from Dennis Scott and Scott Skiles. The next season, the Magic got the number one pick (Chris Webber) and traded it for some dude named Penny Hardaway (the 3rd pick that year) while keeping literally everyone else and made the playoffs, where they ultimately lost in the first round. In other words, the Magic lucked their way into the usual dominant big man, dominant wing man, lots of role players model of contention without really trying. While the prospect of a Shaq, C-Webb frontcourt is just fun to think about in terms of sheer domination, they did the smart thing and acquired the Robin to their Batman or, perhaps more aptly, the Kryto the Superdog to their Superman.
Chris Webber made the playoffs in his first season but was on a Don Nelson team featuring Chris Mullins, Latrell Sprewell pre-choking incident, and Billy Owens. In other words, a HOFer, Latrell Sprewell when he was good, and another solid player. Plus it's a Don Nelson team so it's pretty damn hard to figure out what the hell was going on there. Then, after fighting with Don Nelson, Webber was dealt to the Washington Bullets a poorly constructed team that started the season with its three best players playing the same position (C-Webb, Juwan Howard), Calbert Cheney, and a post-Orlando Scott Skiles. Despite Webber almost averaging 20-10-5, the Wizards finished an astoundingly bad 21-61. The next season, the Wizards front office went insane and decided to pick Rasheed Wallace with their first round pick. (Sidebar, can you imagine how insane that locker room must have been with young C-Webb, Juwan Howard, and Sheed?) Thankfully, C-Webb missed most of the season and, the logjam being partly cleared up, the Bullets finished 39-43 behind, don't laugh, an All-Star season from Juwan Howard. The next season, the Wizards pulled their heads out of their butts and traded Sheed for Rod Strickland. Coincidentally, the Wizards made the playoffs behind the three-headed monster of a healthy Webber, Juwan, and Rod. The next season, the Wizards did not make the playoffs, the wheels fell off the C-Webb bus, and they traded him to us for old Mitch. I think we know what happened next.
I don't know if these are enough case studies for you but, to me, it is abundantly clear that, while the teams were obviously bad enough to acquire these big men, most of these all-stars and hall of famers came into the league on teams that decided to build around them first-and-foremost, and (b) on teams that weren't owned by the friggin' Maloofs. Looking at this collection of teams, there is not a roster that I would not take over the steaming pile of poo Petrie accumulated during the last half decade of his tenure. Even the waning Run CCL (Chris, Chris, Latrell) roster was better constructed than the Smartball teams featuring Reke at small forward and IT and MT at guard.
Overall, if we're going to be looking at trends here, it would seem that the elite big men really start to get going around the age of 23 or 24, something that we're seeing with Cuz over the past month or two. The key thing now is to surround him with talent and pieces that aren't diametrically opposed to his style of play and are able to space the floor for him and deflect some attention from him. That is, of course, why we are all so happy to have a talent like Rudy Gay who can theoretically serve as Demarcus's Krypto the Superdog.