This goes back to the argument in that huge thread bashing on Carr. The W-L stat is not on the QB but somehow some people want to pin it on them.
Carr had a terrible record overall on the Raiders, but the defensive rankings were literally never higher than 22nd his entire career. The D was mostly ranked 25th-32nd every single year. Some games they scored 35 points but the defense would give up 40, and the moronic fans would blame Carr and the offense for losing.