I don't know if they are.
A player in baseball is immediately tossed for arguing balls and strikes. You can question and get a reply to help your next at bat, but no arguing.
Personally, I think basketball should be the same. You can say to the ref "hey, watch 32, he's tugging on my jersey and holding me" or "why was that a foul? What could i have done to not make it a foul?"
I like football the most - only the captains of the teams are allowed to discuss things with the refs. But, basketball doesn't have the same number of breaks as football, so it doesn't work.
Count me in favor of the rule and the way it's being used.