The point here being it's the equivalent of calling Thor, Bob instead of his real name. Which anyone with Wikipedia and Google can get in under 5 seconds.

If there's some reason they changed the name, fine. But if it's because the writer couldn't be bothered to just Google up 'moon maiden Chinese' for a couple of seconds, I don't know if I should bother with a writer who doesn't give a damn about the culture he's writing about, which is mine.