Had Joe Montana had the teams Brady has had you wouldn’t say that
...raw stats-wise.
OTOH stats aren’t everything.
One of the long ago catchers for the Baltimore Orioles, Elrod Hendricks, has an 0.00 ERA when he came in as a relief pitcher in a blowout game (IIRC, it might’ve been the game where the Blue Jays beat the Orioles 24-10).