Now, if they did something smart , like, I don't know...Made this choice only possible if you did not recruit enough people then I would accept the outcome, BUT I can totally see Broonmark or Bowdar jumping down from a ledge and ambushing Vaylin and her troops causing a distraction for Torian/Vette to get away. Or maybe have Jorgan start sniping them down one by one or maybe have it rely on some other recruitment, like the refugees you find in the Swamp on Zakuul who go on the Gravestone with you if you let them live, maybe they pop up and cause a distraction. There are so many better ways they cold have written this.