Patience....
The players will adapt. This transition period might be tough, but the players will adapt. It's a necessary thing in order to return the game to a free-flowing, minimal physical contact competition that it should be.
Once the players adapt and the refs continue to call the games according to the rule book, scoring will increase. Three decades of watching basketball devolve into a grab-fest has clouded the minds of most basketball fans. Most fans born after the mid-70's can't remember a game void of wrestling matches in the paint.
Don't tell me that NBA players are "The Best Athletes in the World" and then turn around and tell me that those professional athletes can't control their bodies so as not to commit a foul. That is a contradiction. College basketball players should be held to the same standard.