Maybe it was those zillion (appropriately spent) hours on the mat that *allow* them to do those amazing things today. And feel like "hey, it's nothing I developed, I just could do it one day... How come you can't feel it?"
Just thinkin' out loud...
Heh. That's what I call "Tai Chee Syndrome". It's the belief that "if I just do this form-choreography I learned at the park from Billy Bob, one day I will wake up and have a green aura around me and people will just bounce off of me if they attack". Gotta love 'em.... these are the people that always pay retail.