You are going way out on a ledge with this one. Simple counting stats like points per game et al are not just for casual fans -- they also decide All-Star spots, All-NBA teams, MVP and Rookie of the Year awards, and player contracts. Lebron James doesn't make $30 million a year because GMs are impressed with his Regularized Adjusted Plus Minus -- it's because he's the best player in the league and it's no coincidence that he also fills up a standard box score more impressively than any of his peers.
We've had this argument before, but your attitude appears to be that any stat which hasn't been developed in the past 5 years to take advantage of computer assisted player tracking technology is beneath you and irrelevant to "enlightened" analysis. You may think this puts you in a class with only the most cutting edge and well-respected analysts but actually it puts you in a very small minority of analytics devotees who (1) actually understand how this data is calculated and how to apply it intelligently and (2) believe that the results it produces are superior to all conventional methods. That's not intended as an insult, I just don't think you realize how small that group is. By your definition at least 95% of the people watching, coaching, managing, or playing professional basketball are ... for lack of a better word... wrong. You really have to produce the goods if you're going to make that kind of an assertion and the jury is still out on the long-term effectiveness of a lot of this information.
Also, there are ways to measure defensive potential besides DRPM, DRAPM, and the unreliable but not totally useless eye test. I've already explained why I like the
Defensive Rating stat developed by Dean Oliver in 2004 (not the 80s and 90s) -- it can be calculated based on information we have that dates back 40 years so there's a much bigger sample of data to compare it to (and thereby judge it's effectiveness) and it routinely produces results which align with common sense (which is often not true of ESPN's Real Plus Minus, for example). And Dean Oliver's Defensive Rating has actually ranked Dragic as a slightly below-average defensive player for most of his career. You have to go all the way back to the 2011-2012 season in Houston to find a year where he even rated as above average within the context of
his own team not to mention the rest of the league.
I also think you're revealing your bias by dismissing the Udrih comparison so completely. Particularly in the
2010-2011 season, Sacramento Udrih was a well above-average player in the league. Was he elite? No. Was he an All-Star? No. But he was a very respectable starting PG who basically held his own on defense and produced a good number of points very efficiently. I think you could apply a similar description to The Dragon. Dragic has never been an All-Star though he has won a single All-NBA third team ranking. That single season was exceptional, no doubt about that, but he hasn't been able to sustain .600+ TS% before or since. If you want to ignore 7 seasons of data and focus on 1 than sure, Udrih isn't in the same class of player as Dragic. But if you look at the big picture? He's not that much better than Beno's career peak which coincided with his last two seasons in Sacramento.