Darnolds always got an excuse given to him by the media. Allen had one of the worst supporting casts I've ever seen in his rookie year but it never fazed him. He made plays, he got up fighting, he never quit. Some guys can just do that.
Darnold doesn't strike me as a guy who won't quit. His footwork is atrocious and his decision making is suspect. He is closer to bust than "good" IMO