I've thought about this. That is the free-style rule and I really don't like it. But this is a "combat" sport and the basic purpose is to impose your will on your opponent.
Allowing your opponent to push you out is not imposing your will, but the opposite.
I still would not the free-style push out for folk. I do not think pushing an opponent to/off the edge is folk-style wrestling. (is it sumo?)
