Just because yo've seen a few moves done in real life it doesn't validate your belief in that "system" or prove that a certain technique is specific only to that "system."
They throw knees in Muay Thai. I saw a guy throw a knee the other day, therefore he takes muay thai...not really. (bad example, but you get it)
And by the way...I don't see any hardened criminal naming his fighting system after an Elvis Presley song. But that's just personal opinion.
We should all take ourselves seriously...and then crumple that image up and toss it out the window.