Wasn't the Raiders defense consistently giving up 30-40 points every game? And exactly what QB was ever good enough in NFL history to overcome a defense that bad?
Go sit down.
All of those offenses were lead by Derek Carr, minus one game in 2017 when he hurt his back and E.J. Manuel started and the last two games of the 2022 season when they rightly benched him. Oddly enough, they scored an average of 23.5 points in those two games started by Stidham, but they scored 34 vs the niners and only 13 vs the Chiefs. But in a limited sample, Stidham was buck for ball with Carr in PPG average.
You can't lay those offensive stats at the defense's feet. Yes they weren't very good, but neither was Derek Carr.