I know we are all tired of hearing how "lucky" we are to have won. Here's why that play was not THE play to decide the Pats fate, IMO.
While I agree that play could have changed the outcome, it was only one of many such plays that also could have changed the game. It is just intensified because of the timing and situation.
There were at least three no-calls that would have benefitted the Giants. Two defensive PI calls were missed, and that Chung hit on Nicks (while I think it was an outstanding defensive play) was called more times than not during the season for roughing a defenseless receiver. All three of these probably cost the Giants points. Two resulted in punts, and one a FG. Also the holding call that nullified Jacobs' first down run on 3rd down DEFINATELY killed a scoring oportunity, even though the Giants would have easily converted without the hold.
The point is that had one or all of these plays gone in the Giants' favor, it could have easily been a blowout by the time the Welker play happened, and it would have been meaningless. On the flip-side, had New England recovered a couple or all of our fumbles, it could have been lopsided going the other way.
So while it may seem (to NE fans) this one play determined the Super Bowl, the reality is that it was one of a dozen or so plays that could have also changed the game.
Yeah, we got lucky on some plays, but others went in the Pats' favor. The G-Men outplayed the Pats AGAIN; plain and simple.