What's the point with that quite lackluster story in Endwalker?

[Teraq]

At least it confirms that the thrust of her concerns is the Plenty and the repeat of their doom, and less so the morality of these vague third stage sacrifices.

By the way, I wish you the best of luck in repeating this exact same argument over and over again when people want to debate Ancient morality for the next 10 years to come. Now you've got a new source to quote from!

(And don't forget to mention YoshiP confirmed the mortal human races only started existing after the Sundering and we have no reason to believe there were any "lesser"/non-Ancient humans before the Sundering. Yes, they really did intend to sacrifice just chickens and trees lol, and perhaps they were divided over it BECAUSE THEY DID CARE ABOUT THE CHICKENS AND THE TREES! so much for that argument.)