I think his performance against the 49ers last year lost a lot of people on the team. The D only gave up 19 pts, and we only scored 12. For the #1 scoring offense that was ridiculous and I think Dak sheet the bed as do many others. This last game probably cemented it for the larger part of the fan base.
Who knows what his teammates think, but the guy makes like double anyone else. It's like working with a SME at the office that you know makes $200/hr that screws everything up just when you least need him to consistently. He's paid like he should be doing the exact opposite. It is what it is. His time is definitely drawing to a close it seems.