That's all it is, nothing more and nothing less. The same as why a pretty girl can get her flat tire fixed by the side of the road while a fat broad can't.
Everybody loves a winner. A baseball ump signals an out on a phantom double play, or enlarges the strike zone in the late innings of a possible no hitter.
Each and every call from race control either sends a message or emphasizes a previous one. And each and every call is biased by human nature. All ya gotta do to test this theory is to flip a booger at a cop.
Is it conspiracy? No, I seriously doubt it. But it is existant? Without a doubt.