Iron fist demolishes. He is just as skilled, has proved microsecond reaction time, and has taken down a whole helicarrier with the ironfist. If he just pounded the floor like that, the shockwave alone would cause serious injuries to shiva. Let alone danny capitalizing on that.
ironfist this is a guy who spent his life in a magical lost ancient Chinese temple learning every type of martial art in the world and the lost art of k'un l'un and has beaten a dragon with his bare hands and isn't shiva ppl like part dragon or something either way with chi he will dominate w/o its a 50/50 chance for both