That washes, Opticaldisc. Given that material was probably conceived of around the epilogue and original post canon team's tenure. As the new team is keeping to "The Main Beats" it stands to reason something like naming conventions of the denizens would be major enough, or indeed, easily adapted enough to be retained.

Great catch though!

Amut (there are several spellings for the particular entity) then becomes fairly sure to show up. Although needing six Egyptian monstrous entities isn't too big a jump I could also see Assyrian or Babylonian ones being used for familiarity's sake.

I'm terribly curious if Ly'lac's name was a product of the current team or was something set fairly early on. Even in an outline. It plays off Rose's colour/flower name but like so much, we only truly know what is just applicable to one character and what applies to the nymphs or "Delta Players" in general by seeing more of them. Another nymph at least. If they're named something like "Clo'va" or "li'lai" it certainly reveals itself rather quickly.