The short answer to the OP question is because they don't understand professional wrestling anymore.
The long answer is that the Miz is absolutely brilliant at his gimmick. His gimmick is to be a sub par wrestler that thinks he's a great wrestler, and to be a perfect old fashioned heel. They tried it as a face, but he's just not a face. He's an absolutely incredible heel.
The long answer is that the Miz is absolutely brilliant at his gimmick. His gimmick is to be a sub par wrestler that thinks he's a great wrestler, and to be a perfect old fashioned heel. They tried it as a face, but he's just not a face. He's an absolutely incredible heel.