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

[KizuyaKatogami]

She didn't know it wasn't a permanent solution, their is no way for her to know that in any other timeline than post WoL and even then she still wouldn't know because the post WoL events never unfolded, the pre WoL events did. What she acted upon was the possibility that Zodiark would fail to stop the Final Days and they would all be doomed, and in her cutscene she specifically says suffering is good to the guy begging to Zodiark to return to them what was being destroyed. And then she sundered Zodiark, and walked through a black time tunnel.
When you first get to Elpis Venat recognizes her marking you with her magicks and says something about a familiar presence, then when she meets WoL she recognizes it again and points out that its her magick in front of Hydro and Emet. She trusts the WoL because she recognizes her own power in them. Which is also why in prior expacs some Ascians refer to the WoL as Azem.
Also, not everyone can manipulate Dynamis and seems to be something rare or somewhat unique to Hermes. Dynamis was a little known thing as is explained by Hermes in regards to one of the conversations involving Meteion.

Her and her followers literally say in Anamnesis that Zodiark isn’t a permanent solution. Sooo…unless she was lying, in which case that makes her look even more evil than she actually is lol.

[dapperfaffer]

Her and her followers literally say in Anamnesis that Zodiark isn’t a permanent solution. Sooo…unless she was lying, in which case that makes her look even more evil than she actually is lol.

And when you beat genocidaelyn for her trial Yshtola says that when she sundered the source into the 14, decreasing the amount of aether they carry in their bodies, allowing them to overcome despair, to be able to face Meteion genocidaelyn responds:

"It is as you say. It was the trial I subjected mankind to that has lead to untold bloodshed and suffering. There was no justice or kindness in the tragedy I caused."
"When confronted with the Almighty Zodiark, my only recourse was to rend him and the world asunder, that his power be diminished for a time."
"And so it came to pass. Now you, my chosen, have surpassed my expectations. Surpassed me."
"I entrust the fate of the universe ... unto you."

And then proceeds to prattle on about the Mothercrystal. The later explanation in this cutscene actually mcguffins everything since it means that genocidaelyn created a time loop paradox.

[Sicno]

genocidaelyn

Thanks, you made my day.