I think you bring up an important point, Steve. About the cross fit guy, who, for the sake of this discussion, we're considering him to be "in shape."
I'm sometimes amazed to speak with guys who've been training for a couple of years in the Arts, regular training, not once a week training...and they're in no kind of shape. Not fighting shape, fitness shape, health shape, whatever kind of shape you want to call it.
You know that old adage, it's not the destination, it's the journey? The same is true of the Arts. That cross fit guy you mentioned? Give me him as a student any old day, but NOT once he's in shape from cross fit. Give me him BEFORE he got in shape. At least we know he'll take on the journey. Martial training will get you in shape. Should, anyway. Filthy, nasty, come and get it, sucker...shape. Getting in shape is not easy. It's a very difficult task.
Going through the
get in shape journey, gives you part of the wherewithal needed to actually defend yourself. One of my long time training partners always said, "Competition is easy, it's fun. Classwork can kill you if you ain't careful. It can make you quit. Classwork sucks."
I'm sorry he feels that way. I truly am. Probably why he quit training. Only lasted forty one years, full time. [pussy]
So....the crossfit guy may be more able to defend himself than others, likely even, but he ain't even in the same conversation as an in shape Martial fighter as far as defending one self. Never mind being in the same conversation, he ain't even even on the same planet.