Why did the Ascians never try to do these?

[Veloran]

I have a "Why did the Ascians never try to do this" question of my own.

Namely, wait.

Pesky Warrior of Light is ruining all your plans?

Well, simply wait 100 years. You are eternal. He isn't.

Even if some Echo/Lifestream mumbo jumbo allows him to reincarnate, there will be a window of time where he would be a baby and you could carry out your convoluted plans unimpended.

Seems to me they're being rushed. After the 7th Calamity the world was over halfway rejoined, it could be the inherent instability and breaking down of the laws of the world that Lahabrea talked about began to accelerate at that point, so the Ascians were forced to step up their schedule. It would certainly explain some of their actions from 2.0-4.0, such as Lahabrea going wild with Primal summonings, trying to use Ultima, Nabriales jumping at the opportunity to force a rejoining with Tupsimati, Lahabrea and Igeyorhm hastily trying to pull off the Thordan plot, etc. Also it would explain why like half the Ascians have all been operating on the Source rather than being off manipulating things on various shards.

It would follow logically as well. Through successive rejoinings Hydaelyn has been increasingly enervated and the dimensional barriers separating the Source and shards increasingly cracked. At this point the standards for a rejoining event may be exceedingly low, while the instability of the world is increasingly high. Maybe this ties into why the Final Days is happening again in Endwalker.