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

[Brinne]

I would say I have two layers of objections to the writing approach to the Ancients in EW: the first is the very premise of "sometimes enacting the annihilation of an entire race of people is, in fact, justified and for the greater good!" is not where I wanted this to go to begin with. That is the biggest level of Do Not Want, Oh God, No Thank You, I Loved Shadowbringers For Specifically Not Doing This, Why.

But hell, if we're going there, the second layer on top of that that is: well, we sure went there, and the execution was terrible. "Unconvincing" would be a generous description of it on several levels. So between the two, the dissonance reaches critical mass, I lose my mind, start making awkward walls of text on forums I was certain I'd never post in, and meanwhile succumb to the wholesale yearning of narrative junk food for the very rare piece of lore worldbuilding I truly fell in love with, along with the characters within. We'd better be able to do something for poor Themis or I may actually evolve into a ravenous three-headed monster whose only purpose is chaos and destruction.