No one is asking for a mulligan. The season is what it was in its totality. Slightly better than average but not good enough.
Carr threw 16 TDs and 3 INTs in the last six games. He legitimately improved in a way Dalton/Winston never came close to doing. On the one hand, people tell me stats don't matter, and then they want to say Carr was comparable to Dalton. He wasn't. Carr was far better over the course of the full season. The numbers weren't even that close.
So you go into next year with a 33-year-old QB who played his best ball in the second-half of the season with the most pressure (mental) he had felt all year. And I'm supposed to be down or giving mulligans over that? No, it just is what it is. It has to get at least one more win better to make the playoffs.