He’s not a dictator. Also, while some actions may make you feel good, that does not mean it serves him in the long run. Behind the scenes, cold shoulders can be more effective than public banishment.
He can ban anybody he wants from the WH press room. Access to the White House is a privilege and not a right. CNN can report from behind the fence. They are “Fake News”. DT proved it. They have to get past the SS and DT can keep anyone he wants from getting past the gate.
Access to the press room is not a right for anyone. CNN can watch it on TV. Just like you and me.