Scott Foster is highly suspect, for several reasons. but, in general, i don't think "the nba is rigged."
i do think some refs let their emotions and personal bias influence calls
and some are probably "company guys" who give superstars and popular, big-market teams preferential treatment because it's good for ratings and profits.
i think the 2 back to back calls in the 1st that got Crowder and Booker 2 fouls apiece, could have, and should have gone the other way... and if a ref did want to tilt the game, that's how it would be done -- on close calls
and, you'd make a call that was technically correct, but i've never seen called before, like Booker's hand being last to touch the ball when it was knocked out by the defender.
and, oops, you'd miss calls like a few that stood out in that game