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

[Nayukhuut]

They gave some acknowledgment to it after escaping Ktsis, she says this

"we cannot allow the report that set this calamity in motion to become common knowledge. Were the masses to learn the fates of the other stars, I fear the situation would spiral out of control"

And considering how the Ancients act and behave, it probably wouldnt have ended well. Whether this is a good reason or not is up to the player but then we wouldnt have a story if everything was just resolved lol

She could have at least told the world's leaders. She knew as much about what was happening about the situation as Hermes did at the end, and Hermes wasn't the only person who knew about Dynamis. Instead she basically just decided to go with her plan and then got annoyed when people didn't take her on blind faith.

When did this happen? I'm looking through the journal, but as often happens lately it's rather unhelpful, and watching through all the cut scenes again will take time.

When you are looking into the past to see what happened with Hermes and Meteion. When he sends them off to go see the universe.