I always thought of WWE wrestlers as performers. They are undeniably athletes. And they are trained with certain techniques. But they are performance athletes. UFC obviously has rules but it's down and dirty fighting. It's not about the performance and the glitz and the glam. It's about getting in there and getting shit done once you're in the ring. Conor was talking about running through the entire WWE roster and from my super casual fan opinion... It holds some good weight. They're not the same disciplines and crossover is not just a matter of getting signed.
It's a shame. Because there are people who have been battling it out forever to try and get a spot in UFC who have dedicated themselves to it. But because Punk is a name and a money draw he's being given preference over people who deserve it more AND are better prepared for it.