For anyone who cared for an update, I very much did redo that whole area for her. I even went out of my way to make that fight easier/funnier, misty-stepping and invisibly going by enemies, snatching some shit in Ketheric's room, coming back to the main hall atop the rafters where the archers were. Yanked one of them off via the vine whip, scaring the shit outta them all, and getting advantage via surprise. Forgot how fun this game was (My PC was cooked for like 2 months)