Funny enough, I'ds say his biggest failure was the Korean. I never, EVER met a Korea that sounded anything like that when they spoke English in my time there. It was more like a femmy Swedish chef. I think he was basically calling all Koreans fags.
It's funny in the basis that Korea and Japan have a close relationship, albeit an uneasy one, and neither particularly liek each other, so pointing out the the potential nationalism is funny to me, having lived there myself and hearing both sides opinion of the other.