KK being asian isn't the problem, the fact that he combines looks from different cultures is the problem, it's a little messed up.
Ever since I saw Dawny's redesign, I thought it was borderline offensive. Her old look was fanservice-y yes, and toning it down is good, but other people and I find it a problem because she STILL looks like a stereotypical native american from an 80's cartoon.
It's fine if you like it, but I can't help but think this way.