This is all about the NBA sticking it's head in the sand. For Stern to threaten Van Gundy with a lifetime ban, because he complained about officials, how flipping absurd.
I don't for a minute believe that there is some NBA conspiracy to penalize Yao, not even for a nano second.
I do believe though that the NBA is unwilling to acknowledge the problem with their officials. When people say officating the NBA is the toughest to officiate it is just a cop out. If it is to hard for them then get rid of them.
How many highly disputed calls did they have in the MLB playoffs the last 5 years? How many highly disputed calls did they have in the NFL playoffs the last 5 years? The reason there are so few in other sports is because these leagues have aggressively addressed the issue, with QuesTec and Instant replay, and so forth. Baseball got agressive with the union and got rid of the worst umpires.
The NBA makes excuses, and deals with everything "behind the scene".
How often do arguments between baseball managers and umpires now escalate like they did in the days of Earl Weaver, Billy Martin etc? Very rarely. Why? Because baseball has put the hammer down on umps who escalate things.
In basketball if you look crosseyed at Steve Javie or Dan Crawford you get a T. There is no accountability in the NBA, because the league ignores it's problems. You here this stuff all the time in the NBA, from every team, throughout all the playoffs. It is always an issue bubbling just below the surface. David Stern's approach is to fine and threaten until the problem goes away, but it never does.