it is common, and it’s not completely without merit, but it’s often times over done. Its used pretty widely as an excuse that ignores some of the real issues guys like Darnold have. Though I have noticed many are coming around to seeing the issues in his game independent of his situation. For instance, the sack where he got hurt. He just missed an open WR so he got hit.
It’s frustrating because it’s the same thing everyone did with Rosen for a long time before he went elsewhere and showed he was just not good.