Well, he did beat Baroni (twice), subbed Van Arsdale faster than Randy did, beat Lutter, Salaverry and Newton, gave Fedor a pretty damn good go, and was the first man to knock out Jeremy Horn in about 100 fights. He also did very well against the current UFC LHW champion, if you recall.
On top of all that, he's a much more well-rounded fighter compared to when he was last in UFC. People used to criticize him for fighting to decisions all the time, but he's finished his opponent in each of his five wins since leaving UFC.
He also has a lot more personality than he gets credit for.
He's one of the best in the world at 185, and deserves to be fighting the best at 185.