Belichick's churlish attitude toward the Patriots this year was surely directed at Mayo and the Kraft's. The mutiny from within and Mayo's Brutus-moves surely rankled Belichick, and it showed whenever he had to assess a Patriots game, especially when he took issue with the idea that the players on the Patriots defense (who were the same exact players as the previous year) were soft.
If he was still in the media next year, I bet he'l=d still try to be even-handed when assessing their games but he would be positive and talk up Vrabel. Of course, that's not going to happen now.