Lechoke could get away with murder because he's NBA's media darling. It'll be the same with Blake Griffin from next season onwards. Every damn day there is something about Griffin on the NBA website really really annoying and boring. Yes that kid can play, but....
I think you are spot on, some of the decisions against our superstars this season have been surprising. Especially against Melo. Normally things like that don't get called against superstars. STAT got away with a few travels though.
Another thing I've noticed is that Wade gets a call in his favour every time he attacks the basket. It's like the 'Dwayne Wade Rule'. Even if there is no real contact or minimal contact they sponsor him free throws. He's definitely the referee's favourite player. The amount of free throws he got in the 2006 finals was embarrassing and nothing else. Hasn't changed much since then.
With neutral refs MIami would be at about .600 maybe under. Lechoke and Wade live on their advantage regarding refereeing decisions.