As I mention in the post, I think they developed the game in a era when players like Kobe Bryant and Chris Paul were big stars. I actually don't think DR is so important in this game relative to HA, OD, JS, RB... My best teams actually had guards that excelled in PA, I think that had a big impact on FG% for the rest of the team and made my big men play better in LI and LP offenses. In my opinion, JS and DR get a lot more training that other skills since they are get the most skill pops for the team overall as a two-position training skills. RB would also get similar treatment except that the BB veterans know that high RB skill has an outsized impact on creating higher salaries and making payroll bloated. It seems to be that you if you search for players with a minimum of, say, 103 TSP, you'll find a high percentage of those players get to that number of TSP with an oversized amount of HA/DR skill points.
Don't ask what sort of Chunks they are, you probably don't want to know. Blowing Chunks since Season 4!