Eh, I don't know if I agree with this. I'm a Peyton fan but that play was so fluky. Arguably should have been 27-18, if Bettis had done what he had done millions of times before from that close. And to beat up on Harper...it stinks he was tackled by Ben, but come on, hard to kill a guy on a play like that.
As far as Peyton's performance in general, it was okay, but I'm not sure I'd claim that he put them in a position to win anymore than Bettis or Harper did. He only threw 1 TD and let's not forget the fact that he technically threw a pick in that game that was overturned in one of the worst reviews in recent memory.
I'm not trying to talk semantics here, I just think if you want to make an argument for Manning, I wouldn't point to that game.