On one side, you don't turn on your guys like this. He seemed pissed through out the interview and should not fall off his teammate like this. It still didn't sound as bad to me as you guys seem to take it, but I can see why you would not do this.
On the other side, he really didn't say something that offensive. He said that he disagress with what the hosts states, says that Kampman didn't handle this well and then sums up a lot of positives about this change. Is that not pretty much stating the facts? Maybe he shouldn't have done it on the air like that, but really, he didn't say anything wrong.
A second point is that this might just be an irritation factor. If he acts the same way on the practice field as he does to the media, someone would have to tell him something about that. I doubt that McCarthy would do that. He seems like a softy.
This is all just speculation though.