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

[Teraq]

Okay, deep breath. I'll try to calm down.

I just want to call back to my initial comment about Dynamis being Calvinball to allude to its vague and nebulous non-rules that writers conjure up to fit whatever scene they want to write. "They could have done X with Dynamis!" "No they couldn't, that's not how Dynamis works!"

I would say that, currently, the score between EaraGrace and Sicno is oogy to boogy.

Until the river of Dynamis overwhelms the planet and pierces the shroud of Aether, which would have happened even with Zodiark.

I'd just like to say though that the one thing we know for certain about Zodiark's barrier is that he held it up for 12,000 years while functionally in a coma, broken into pieces scattered across dimensions and without replenishing his aether from his basal state, and it only broke after 12,000 years because some malicious gremlin (finally) committed suicide while piloting Zodiark. We can logically infer that it might have broken eventually, but he was doing just fine from what we've seen in game.