I've never heard of Lord Dunsany, at least not that I remember.
This was kind of a fun story, especially with the context that it is not new. I think it may have been beneficial to mention that it wasn't new in the intro as I tend to take the style of a story's time of origin into account.
I got quite a few laughs out of this one, particularly when the gods were saying "There is dirt on Chu-bu" "There is dirt on Sheemish" 900 times in a row, and the narrator says that we should not judge them by human standards because they are something else entirely. His words that claim they are something more clashed nicely with the grade school behavior of the idols themselves.
