Technically, the Seldarine drow is also from the Underdark, at least you can tell by the tags.
I should have called it a "remake", not a "rename" then. Right now drow subraces remind specific backstories more than subraces, and are tied to certain deities. They force the drow PC into one of two very specific archetypes, leaving out many types of drow characters people may want to make. (At least unless they want to go with their headcanon.)