The Patriots (especially Brady and Belichick) hate the Jets so there is no way they would let the Jets win. They are rivals: the Jets would lose a game if it meant the Pats missing out on something important (such as the playoffs in 2008) and the Pats would do the same if the Jets had an opportunity to clinch something. On top of that, Belichick is incredibly competitive (proving it by going for 16-0 when he could have rested players in a game he had more to lose [injuries] than gain [perfection]). The theory about the Steelers being a more difficult opponent than the Jets (which isn't even true) is ridiculous at best. For one, there is no guarantee the Patriots would meet EITHER of these teams in the playoffs so why try to predict the future (especially if they fall to the #2 seed). Now is it true that both the Steelers and Jets would likely beat the Broncos (in their current condition)? Probably, but you can't assume those things. Also, if it's true that the Pats were trying to throw the game, why were they behind so long (even when the Steelers were down double digits) and then furiously came back (even though the Steelers were still down by 10).
The truth of the matter is: the Jets were better today, and likely were more than a touchdown better. The only thing that made this a game was the fumble the Jet's lineman head butted instead of holding on to. Did the Patriots have plenty of injuries? Sure, but overall, the Jets were better. Honestly, I'm not convinced we won't see this match up again in either the Divisional Round or the AFC Championship Game.