They only invited those who looked best on camera?
What about Geoff Capes? He looked like nothing but a giant hairy troll and trounced all of the other competitors (sans Kaz and Jon Paul Sigmasson). He was an athletic MFer too, and was what-- like 6'6" 330lbs? He had better coordination and quickness than Kaz, just not the strength. There are other examples, I just don't have time to name them (class starts in 45minutes).
Can you elaborate on "looked good on camera" part? Maybe I misinterpreted what you said.