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

[Riardon]

During SHB as we were learning about the ancients my theory for what had caused the Final Days (which was probably a common theory) was that because creation magics required a great deal of concentration and they were so powerful the ancients were walking time bombs, and it would have taken one person to lose their focus to create an unexpected abomination and start a chain reaction of panic among their peers that birthed even more abominations through accidental creation magics. Similar to how Estinien lowered his guard for just a moment and that was enough for the eyes of Nidhogg to possess him.

And I thought that would also explain why they had to be sundered, as they had too much power they could lose control over at any moment, so splitting them into less powerful beings was seen as a necessity. And since the Final Days would have been a mess of their own making then sacrificing others to undo its aftermath could have been deemed more inexcusable.

And instead we got... this mess I'm still scratching my head about.

Yeah a logical explained ending with enough drama and tragedy to become a good ending to the saga throwed in the trash.
They instead took a messy approach filled with plot holes and time travel mambo jumbo to subvert player's expectations which resulted in whatever that ending was.
I hope the from 7.0 onwards the plot will be more grounded and logical.

[Iscah]

Yeah a logical explained ending with enough drama and tragedy to become a good ending to the saga throwed in the trash.
They instead took a messy approach filled with plot holes and time travel mambo jumbo to subvert player's expectations which resulted in whatever that ending was.
I hope the from 7.0 onwards the plot will be more grounded and logical.

I don't think the time travel is that messy, or at least it didn't need to be - as I said before, all it needed was that Venat lost her memory so there wasn't any information created by the loop with no traceable source.

Either that or we shouldn't have told them about the future at all. The conversation should have ended at:
"...so you must be from the future, correct?"
*nods*
"Well, it's probably not a good idea to tell us anything about what's going to happen, or you might disrupt events. Perhaps you could just tell us in vague terms why you're here?"

All they really need to know is that something bad happens in their future, and they found a way to stop it, so we're hoping to observe what that something is.