Parcells is no dummy, he knew Bledsoe's limitations. Besides, you can criticize the game plan, and the execution, but this has nothing to do with Parcells allegedly sabotaging the game ahead of time because he had "one foot out the door." I've heard this stated as though it's a fact when in reality there's no concrete examples or evidence of it.
Don't spoil the good vibes now... obviously I'm not being "deliberately obtuse."
The '85 Bears may have been the GOAT team in NFL history so it's not really fair to use them as a comparison to anyone. However, the '96 Packers had the #1 ranked offense and defense and the best offensive player (Favre) and defender (White) in the NFL. The Packers were pretty much better than the Patriots at everything and they outclassed us by a significant margin at QB.
Otherwise, you're speculating about how the team may have been affected by Parcells disillusionment with Kraft. And what Parcells did after the game is meaningless to the team's preparation for the game. I think Pats fans generally are bitter with Parcells and have conjured up some nebulous circumstance that supposedly was detrimental to the team heading into the Super Bowl.
Frankly, Bledsoe was putrid that entire postseason, however the defense was so dialed in it didn't really matter until the Super Bowl when in a higher scoring contest where the QB has to make some plays, Bledsoe was hardly up to the task. Like he never was for his entire career. I know there's some sentiment for Bledsoe here but he wasn't a winner and he was at his very worst in the postseason. Example 1A is SB 31.