The Reasoning behind The Sundering? (*6.0 Endwalker Spoilers*)

[EaraGrace]

Part of the reason why it's hard to know if the Rejoinings were actually failures is that she did need them to happen in order to reach this conclusion that is ideal for her. It's hard to argue that Venat was freewheeling it and trying to go for an alternative series of events when everything turned out exactly as WoL described to her and she was actively abetting at least some of it.

A timeline where she didn’t have to devote the vast majority of her power to maintain the bonds on Zodiark, where civilizations didn’t have to reset every few millennia due to a calamity, and wouldn’t need her strength to resist the Ascians seems much more conducive to her goals.

And I would say it’s very easy to argue it, given we know she was acting to stop calamities. Her support of Tenzen and Ramza, the aid she offered to the various WoL throughout history all point to that end. And then there’s her statements on the matter, which I posted earlier, all make clear her thoughts on how she approached the Rejoinings.