The kid Goat is an interesting concept.
My first reaction is that kids have so much of a lower weight to surface area ratio that any kids' ski is a cheater. (Look for my "approximate float index" post on TGR a few years ago.) So why would they need rocker?
But when I think about it more, my mind goes to Shane McConkey's theory behind reverse camber, as set forth in the Mental Floss screed. His idea was that in soft snow, a skier has to decamber a normal-cambered ski to get it to float effectively. That requires exertion of force generated by weight or speed. By definition, that's going to be harder for a kid to do than an adult -- even more so in light of the lower weight to surface area ratio.
Maybe that's one of the reasons why kids seem to have a more difficult time in powder than adults? And because reverse camber is effectively pre-decambering, perhaps kids will benefit even more from reverse camber than adults?
Anyway, Jim, if you have a pair of demos that one of my kids can try on an appropriate weekend next season, I will guarantee you a jointly-written review. ;-)