Non-completion categories are usually miscellaneous, and this seems like a really arbitrary category in my opinion. Plus, there would be a bunch of rupee and wood grinding, and even with the trees near Tarrey Town it sounds boring and tedious. If I remember correctly the NPC's can only move to TT if their respective Divine Beast is complete, so this feels like it'll be All Dungeons + TT + no Ganon, which just sounds really odd.
Some NPCs might require their Divine Beast be complete, but definitely not all of them. The Goron certainly doesn't require it. So this might be something like some dungeons + TT + no Ganon.
There should at least be a legitimate reason to include it over, say, Lynel Picture %, or Akkala Tech Lab %. Other than being long, there isn't anything that really separates it from any other side quest. There are other side quests that require dungeons to be completed as well.