"i just watched Hironaka's UFN match and he was owning the guy on the ground."
On the UFC site?
I dont believe the guy he fought is any good and as mentioned, Hiro beat JJM so, shouldnt be any surprise how the ground action went.
I think all the japanese fights on the UFN went as expected, like the guy who was supposed to win, won and the others were expected to lose i think (though i dont think anyone expected mishima to do that shitty)