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

[Thaciscokidd]

Where I see the difference is the means and the result. You can go back in time and stop any one of those things and the world would be a better place but it would also still be our world. The Ascians want to delete 15,000 years of history and in order to do so, they need to cause untold death and destruction time and time again and each time, a whole world is destroyed and along with it all of that whole world's history and every life upon it.

I couldn't sacrifice billions of people over tens of thousands of years just for the sake of what once was.

Super off topic but.

This is the danger of linear Closed Loop variety and the branching Open Loop time travel well time travel in general. You are right. For the story to go forward with the world as is the loop needed to be closed(strangely unlike the black rose death timeline that was averted in ShB).

But as cool as it would be to stop one of those real world events there is no telling the repercussions that would happen because that had changed. Heck if you changed the Transatlantic Slave Trade there's a good chance I wouldn't exist and more importantly what atrocities would(or wouldn't) occur because who exist or who doesn't exist. Fundamental butterfly effect theory.

If you want a good example in gaming Chrono Triggers 12 different endings depending on what you do or don't do.