Did you not hear the second verse?
So if you went into your boss' office to complain about bad stuff he was doing, would you call him an ugly piece of shit beforehand? No, actually, it doesn't matter if you'd be a big enough sociopath or not to do it, the point is, attacking someone's looks are the last resort of someone who doesn't have a goddamn leg to stand on, and it's not grown up either.
ETA: You do realize that this was a response to being told to keep it down so that Guerrero could do her job, not anything bad or shady she had done to Rock that night, right? No, of course you don't, because you don't pay attention to the big picture and instead concentrate on making snide comments like "LOL WASN'T HE A FACE LAST WEEK STUPID WWE"