Yes, it is...a lot of teams do. But mainly its always the better the team, the more bitching there is to the refs.
Yeah, it really annoys me about the NBA when compared to college. The stars always complain when they don't get their superstar calls. Also the notion of "superstar calls" and "rookie calls" is ridiculous. It should be officiated the same no matter who the player it, but that clearly isn't the case.