Eh. Evenness is a property only of integers, so if someone's going to pull in a library to check it, I could argue it makes sense for that library to enforce that the comparison only be attempted over values where it's defined.

Granted that this seems a lot of effort to put into analyzing the contents of a Github repo tagged "troll-bait", from the user "i-voted-for-trump". But hey, this is HN, so it's whatever I guess.