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

[Supersnow845]

The barrier protected the sundered but it didn’t protect the ancients, if venat didn’t sunder the ancients then the final final days would have continued unimpeded while they tried to come up with a solution to a problem they didn’t understand or couldn’t properly interact with (since ancients can’t interact with dynamis properly)

So it basically amounted to a split second decision
1) risk it and hope someone fixes the problem before the final days consumes everything and removes any future chance of them fixing the problem
2) sunder the world to buy time to fix the problem

I 100% agree that venat is in the wrong for not attempting to do anything with the convocation to alert them of Meteion but we also don’t know how much time passes between elpis and amurout, the EN version of Elpis strongly implies it’s not a lot at all, plus with Hermes being Hermes how much can venat really trust the convocation beyond Azem, how does she know that the rest of the convocation minus emet selch doesn’t support Hermes plans

[Nayukhuut]

It did protect the Ancients. The world had been stablised and was recovering when Venat decided to destroy it. She did what she did because she was on the faction that didn't want the new life to be sacrificed to get the Ancient souls out of Zodiark. Though the devs never did exactly explain what the new life was, it all ended up being moot because that was wiped out when she Sundered the planet anyway.