Both of those games were officiated poorly, especially the NFC one. Rumor had it that Goodell (hate him) wanted to revitalize the franchise, there's a stadium involved as well, big market as CMG pointed out and Goodell hates both the Saints and the Patriots for different reasons.
I agree that the Saints should have scored at least one TD in the red zone, but they didn't deserve to lose the game by the fact they didn't. Hopefully, this will lead to a rule revision, since there's no way to protest or confirm a non-call. The Saints probably would have won, Drew throwing that interception in OT sealed their fate but there would have been no OT if not for the blown non-call.
And the Pat game, think that was Belachik's strategy to get ahead so when the game turns into an inevitable shootout, they'd never be too behind if at all. That one was the epic game, it did turn out to be decided by a coin toss but it's just as easy to argue the Chiefs would have won if they hadn't be dead the first half. Super Bowl will be anti-climatic, but pretty sure Gronk and maybe even Brady will retire as winners.