Lions do the same thing. Probably from their previous coach.
Parcells would open the tunnel doors at the old Meadowlands.
Does it help?
Eh.
Psychology.
The other team misses a FG to lose the game
Vinitieri kicks a FG to win the game
the defense gets an int in the end zone to win the game
belichick steals the other teams playbook
however many crazy ways that team won games, only one guy got the credit for every single win. That arrogant ass tom brady.