I never said they couldn't fight or hurt anyone. But I've learned that practicing katas isn't really gonna learn you how to fight. Katas are useful to some extent. They are like shadowboxing, you can't rely on that alone. You need to spar, full-contact to learn techniques.

And those karate masters won't survive too many rounds in the UFC, trust me. They limit themselves too much to one style, and they don't have enough fighting experience.