True - anyone could have made that Snow Bowl kick, and teams that argueably had more talent (the Colts) certainly never had any problems with kickers choking in high pressure situations.
But while the Colts viewed Vinatieri as the missing piece of the puzzle and have a SB ring to show for it, my guess is that the Patriots, in drafting a highly touted kicker instead of spending $3 million on Vinatieri, had plans to use that money on some key offensive players that would ensure that the Patriots could blow out teams rather than be dependent on winning by a Field Goal.
Overall I don't argue with that assessment - 16-0 during the regular season suggests it was a pretty good plan... though some would argue that Belichick didn't seem quite ready to trust Gostkowski with a big, high pressure, long yardage situation.
Would that have made a difference in the 2007 Super Bowl? No one knows, though Vinatieri did have a few surprisingly long FGs that season for the Colts.
My point is, I can easilly find a place on my top 10 list for a kicker who made some pivotal kicks in each of the franchise's Super Bowl victories (all of which coincidentally were decided by 3 points - which coincidentally was the number of points we lost by in the 2007 SB).
I'm not saying we don't win Super Bowl XXXVI without Brady - but I'm saying it's very possible we don't win Super Bowl XXXVI - or even get there - without Vinatieri.
And since winning creates an environment for winning, attracting top players willing to play for less than market value - one might argue those kicks helped create the winning franchise we have today.
In other words, are players flocking to the Patriots to play for Belichick if he never won a Super Bowl as HC? I doubt it.