Yoshi P confirmed that the magical EW loop was closed. When you try to stretch it out and apply it to the 10 year history of the game, it doesn't work, because it's not meant to be interpreted that way. It creates all sorts of inconsistencies, problems, and meaningless actions within the narrative. The reason there are no side stories or sources that directly cover what Venat did or didn't do as far as Meteion is because they're written in the context of a non visit history, or at the very least one where she does not have any agency. And she's not the only person that doesn't. Rather than a 2 hour video, I prefer this thread that takes a deeper look at how time works in XIV:
https://www.reddit.com/r/ffxiv/comme...time_works_in/
Also, the Sundering is not built on the idea it made humanity strong, at least not completely. That's information conveniently revealed in..oh yeah, as I keep repeating...Endwalker. The writers wanted to have their cake and eat it too-- have a magical Elpis visit that gave us hope the future could be different but ultimately not change it because "fate" (because MSQ). As such, present day Hydaelyn and Lifestream Emet have to awkwardly assess and rationalize all of these new EW lore pieces as though they had agency when they didn't. Hydaelyn even makes reference to this in her trial-- "I had no choice but to render Zodiark asunder". It's not clear if Venat understands why she had no choice- that's the point.