There's one obvious problem; the regular season. It's becoming increasingly irrelevant (to an extent, just remain in a playoff spot), load management etc.
Personally, for me, it's hard to enjoy because offensive players steam rolling, jumping into guys, and actively causing contact. IMO, it slows the game way down. I think it should be addressed. Yes, I know that would be sloppy to enforce. Similar to flopping. But if the league addressed excessive offensive player initiation and said it will be enforced by a foul, I think it would clean up the game and flow a bit.