Well, that's why Mayumi and Mari did so well against the badass in the earlier ones. They weren't utterly curb stomped BECAUSE Mayumi is one of the Ten Master Clans and has uber potential and Mari, while not a member of the clans, is on that level.
As for this episode, was pretty good. I'd have liked more exposition here and there but I am happy they let Tatsuya be as utterly violent as he was. Looked pretty cool.