I think it’s more along the lines of Derek Carr not trusting his O-lineman even though they have been holding their blocks for the past month. That wasn’t the case earlier in the season.
You can tell he doesn’t fully trust his O-line because he doesn’t go through his reads when he drops back. If he perceives he’s going to get pressured pre-snap he’ll target one guy and stair him down. Also, because of the perceived pressure he’s not comfortable throwing the ball that’s why his passes are off target.