Potential comes by a lot in MMA and also doesnt translate a lot either, so people are reserved with their excitement about it. Which is especially more called for when the specific case of potential has A) a relatively smaller window to actualize the potential B) a division where actualized potential means less than other divisions because of everyone getting by on low-skill knockout power, and C) has already had other avenues where his potential was supposed to actualize, but was seemingly never proceeding along.
So as far as everyone getting on the wagon: Can he make it? Sure. But the horse comes first, not the wagon.