I've submitted this feedback before, and I suppose it wasn't fixed. Now I missed the weekly endeavor because this issue hadn't been fixed... Oddly, recollection mobs count as humanoids in the West Weald overworld, but not in the Varen's Watch delve. Furthermore, necromancers (which are definitely humanoids) in the Silorn public dungeon don't seem to count as humanoids in West Weald either.
When one of the weekly endeavors (the one I was going for sadly) doesn't work properly, I can't help but feel frustrated.