Prescott is correctly 2nd team All Pro.
It is a mix of the lack of depth and poor quality at the quarterback position compared with years gone by, the quality of the o-line, defensive stops/turnovers, Lamb as a receiver, soft schedule/awful pass defenses and he has crushed his play against all those bad teams to massage his stats so the poor play against good teams/defenses gets mostly overlooked.
He's vastly overrated in my view yet he fully deserves 2nd team All Pro this season which as previously mentioned, speaks volumes for the state of the quality of quarterback play in the modern game.