Mac has to calm down when things don't go his way. No pouting, no wild gestures, no running after the refs. It does suggest emotional immaturity and its not a good look for leader of the team.
He had a good game but the emotional immaturity under adverse circumstances keeps rearing its ugly head.
If he had even a semi competent qb coach he would have taught that lesson to Mac already
People make too much of his emotions. You just described things Brady does when things go wrong. I mean I think Microsoft have taken a restraining order against Brady that he cannot be within 50 feet of a Surface tablet when he is upset.