Kornheiser loves the Patriots. He has since 2001. I remember listening to his radio show the Monday after the 2001 super bowl, and it clearly affected him. He talked about two things for about two hours: (1) the introduction, and (2) how badly Martz got outcoached.
I listened to him pretty faithfully on XM radio until he quit his radio show to do MNF. He simply views the Patriots as the gold standard in football in the parity era. Kornheiser sees himself as an intellectual -- and the reality is that he's very smart -- and I think he is just impressed with Belichick's intellectual approach to the game. He also is a shameless Redskins fan, and I think that Piolichick is in so many different ways the antithesis of Daniel Snyder that Kornheiser is envious and very respectful.
Kornheiser has cultivated his clown-like image pretty carefully, in large measure because he's parlayed it into a fair amount of cash. But the reality is that, at bottom, he's an outstanding sports guy with true, deep sports journalist chops. He's an outstanding writer and when he takes the time to develop his points, rather than quick hitter one-liners on PTI, he's insightful.
The guy has been an enormous and earnest fan of our team. I really can't see any reason for criticizing him. As for his saying we'll go undefeated, it's just his way to make his point about how he respects what the team has done in the law few weeks. Obviously, it's not to be taken seriously as if Ron Jaworski said it or anything. But it's still his way of paying the team a high compliment.