They aren't voiced in English. Maybe that is what has you confused?
In my apparently unreliable memory, I recall watching that very scene. But it was silent and the subtitles were in Japanese. And that's what has me confused. Wasn't KH2FM released the same way that KHFM was, where they take the English version of the game, add all the new content, and use Japanese subtitles?
Because KH2FM has Japanese subtitles. Unless there's an option to switch the language that I don't know about?
Gah. My brain.