I do agree Jayden is not alone in struggling, this is a team sport. The game plan and playcalling could be better, receivers have had drops, penalties have been a problem, there have been protection breakdowns, our best receivers have been hurt, and guys have struggled to get separation downfield.
But yes, Jayden has clearly regressed. He is worse in almost every statistical category (completion percentage, QB rating, QBR, y/a, y/g, sack%, TD%, rushing ypc, lost fumbles, etc.). I am willing to chalk a lot of this up to the above “context,” but Warner has clearly shown a lot of this is him making mistakes he did not make last year. Hopefully this is just a sophomore slump and we see a return to form next year, but he is not above criticism in this “epic mix of suck.”