Upon reading what the scouts are writing in his profiles, you're completely off base on the mental part. While he doesn't have an elite arm when it comes to arm strength, he has proven he can throw downfield with accuracy. They rave about his ability within the pocket, and his ability to read the field, make his progressions, and distribution of the ball. With the tendency to square up his shoulders to the side of the field he is looking. Biggest knock on his throwing right there.
Yes, he is a pocket passer, and not a duel threat QB. I understand why people prefer a duel threat QB.
He's no Watson, but I don't get the hate towards him.