Fixed is too complicated a situation. The refs are just plain bad, and their badness in the playoffs always seems to have very predictable results. Then there’s the NBA two rule book system (stars pretty obviously get favorable calls over scrubs very consistently) for a long time, add in the gambling scandal from a few years ago where in the NBA admitted most of its refs violate the gambling rules to some level and NOBODY got punished, David Stern’s comment about “knowing where the body’s are buried” when he was facing some issues, the constantly “interesting” draft lottery, and a lot of very high profile just plain bad calls that have a tendency to prolong series (how about that game 4 Heat win) or favor more popular teams. It’s just hard to say NBA games are 100% fair. There’s just too many times when if you sat down and figured out what the league’s (Stern’s) desired result would be that’s exactly what happens. Doesn’t seem coincidental.
The Draft Lottery has a witness from every team present. So if its getting fixed its with their knowledge.