Regarding that backcourt non-violation, you are allowed to throw it into the backcourt, but the replay I saw looked like he jumped from the forecourt and caught the pass before he landed in the backcourt. That means he effectively caught it in the front court, then went into the backcourt. I only saw the replay once, so maybe I missed something, but it sounded like Legler thought it was a violation. Whatever. Ref's miss things all the time.
As for the alleged push-offs, Dallas was doing a lot of grabbing that was not being called. these are the finals and that kind of stuff doesn't get called. That's why finesse teams have trouble in the playoffs. Wade was clearly fouled at the rim and you can't let that slide, any more than they let it slide when Nowitzki went to the rim against the Spurs at the end of the game.
The NBA clearly has a credibility problem with the officiating. When you combine "home court advantage" calls and "star treatment", you do resemble the WWE more than a professional league.