You make it seem like the defense sucks in your examples. Context helps:
Browns: only 80 rushing yds against, Chub had 19 yds rushing on 14 carries and we won. Come on, man.
Pitt: only 54 rushing yds and gave up 3 points. Come on, man.
KC: only 68 yds rushing and we held them to 20 points and we won. Come on, man.
Vikes: Can't have them all. They are 11-3 for a reason.
Ravens: only 134 yds passing allowed and 2 ints. by our defense and we won. Come on, man.
G.B.: only 190 passing yds allowed and an int. and we won. Come on, man.
Jets: Last game was 76 yds. rushing against and we won. Come on, man.
Dolphins: 1st game we gave up only 41 yds rushing and 171 yds passing. Come on, man. 2nd game only 217 yds passing and we won. Come on, man.
To me, Josh Allen reverting back to "Red Zone Interception guy" is more of a potential problem to me. The offense has had it's moments of sucking too. It's a long season and every game is it's own. As shown by your selective stats.