It's not "stupid" it's a good workout for women.
Till they get a Slap tear or rhado:). It's always fun to read the X-fit injury board.
On the Barkley thing, he was a real athlete, who played a real sport, not just some dork paying a "box" fee to be worn out like the others in that video. Give him a month or two, and if he wanted to, he could own 99% of all x-fitters.
For more x-fit lulz check this one out, what trainer thinks this is a good idea?

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And finally, for those that like the crossfit girls-
http://wildgorillaman.blogspot.com/ .
updated daily with pretty good pics.