Thank you for starting this thread. I think the amount of palming/carrying the ball in the league is the biggest problem. Athleticism has always had a coveted space in the NBA, but skill usually won out. Palming has tipped the scales in favor of athleticism over skill.
As a result of this, as well as some other rules changes (or no calls), players like Lebron can barrel down the lane as opposed to actually becoming a good jump shooter, Kyrie can keep doing crossovers w/ palming instead of having developed passing skills like a normal PG, and most top draft picks these days are coming in the league with qualifiers like "yeah but he can't shoot. He'll have to learn how to do that in the NBA." How ridiculous does that sound?
Palming acceptance has made a first step & speed a more important individual skill than shooting, boxing out, or passing. And that is a major problem to me.