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

[Caurcas]

Ra-La owns. The only problem I have with it is that I main Sage, and when someone gets hit with Doom, topping them up in a hurry can be quite tricky!

You need a healer for that? On a more serious note, the Ascians and their struggle confirms Venat's philosophy in an ironic way. Emet most of all. After the sundering, he understood the value of the life he lost. Life that the ancients trivially threw away before the calamity. He then struggled for 12,000 years with every fiber of his being to restore what he valued most. He was not stopped till we literally destroyed his very aethereic being. Struggled to the last, because he had learned the lesson of value he had not in the olden days. Ironically he was rewarded for this by having his people remembered and their souls freed from Zodiark at the end.