There wasn't enough characters in that area to fulfill the requirement. All I could find was Martha, Wyler, Marin, and Kerrin, and the rest of the area is blocked off by soldiers scouting for monsters. I had to go back to the previous area, and the game even tells you that you should in order to recruit people that you missed, but instead of was stick circling this same tiny zone for hours, checking every pixel to see if I'd missed something.
I have zero problem with backtracking. My problem is being gated in a tiny area and never being told that there's an exit. It's not like it was supposed to be a mystery. It wasn't behind a bunch of exploration and challenges. It was just assigned to a sprite of a well, of all things, in a backroom of your home base. Would it have been so hard to just stick an NPC next to the well that says, "Hey if you want to go back to Grum County, journey through this well."?
But yeah, if the game is going to keep doing shit like that, then I'll take your advice and stop playing.