Why Are Stats Used to Justify Who's The GOAT In Other Positions But Not QB?

QB is seen as a leadership position only overtaken by the head coach. It's easy to believe the QB is by far the most impactful player on the field. That's probably why wins are tied to greatness at the position. It's an unfair and simple view, but it is what it is.

Maybe I should start asking if defense wins championships when people bring up the rings argument.