I get your Point and they are fair but other great athletes have been drafted that never made it also.
In the case of a player like Wiggins, his athleticism and some of his skill set trumped some of the red flags that were there. The same could be said for McLemore. There were a lot of red flags for Thomas Robinson, but I guess the hype trumped them for the Maloof's. Ditto Jimmer! If there's one thing that I've learned over the years, is that skills trump athleticism if that's the choice. The NBA is a league full of people that can can dribble, pass, and shoot the ball. And if you lack one of those skills, then you better be dammed good at the other two, and maybe throw in some athleticism as well. It was easier in the old days when you drafted seniors. By then you had a very good idea of what you were getting. In today's age of one and done, it's harder, but not impossible. The more money you put into your scouting dept, the better decisions your going to get.
I could talk till the cows come home on this subject because it's close and dear to my heart. What I've found is that every NBA scout is a little different in how they approach their job. I've read books by a couple and articles by many of them. All interesting stuff, but at the end of the day, it's a matter of how you process the info, and that's an individual thing. No two pair of eye's seem to see exactly the same thing, nor do any two scouts make the same assumptions. Which is why it's interesting to hear a couple of them on a podcast discussing the same player. It can be very informative.. Anyway, I won't bore you with anymore...