NBA has the worst refs in pro sports. I barely know basketball and I know that. If you're a star you can get away with murder on the court. They manipulate the game to get closer to results they want. Break up big runs by teams.
Hell, I think at points tonight the number of fouls they called on the Wizards early might have hamtrung them a bit later because they weren't quite willing to foul out half the Wizards with a ton of time left in the fourth