Oh, I think it sets the tone. Not to how Battier should guard Roy, but how Roy will look at the potential outcomes of his drives. "If they are going to call this weak crap, then why not just drive with wreckless abandon. They are going to bail you out so why not."
I care less about the unfair calls on the guys who guard superstar wings than the ridiculous offensive foul calls on Yao. It really is unbelievable; guys literally climb on him when he's on the offensive end, and he just stands there. He's not allowed to use one of his biggest weapons, his strength.
And if he jostles with them for position he is just as likely to get a foul called on him as they are. Which when you have 3 guys you can throw at Yao thats 15 fouls(dont want them to foul out) vs 6 fouls. I think the odds are slightly in their favor.