Though there were quite a few bad calls, the blame here is greatly exaggerated.
Remember the Kevin Garnett and-1? If the game was truly rigged that would not have happened so late in the game. It would've been play on.
Also, that Josh Smith slap to the face ala Pierce was easily a foul.
Aside from maybe KG's last foul and the Steamer's last 2, the refs didn't do a horrible job. The Hawks were very physical with us down low.