Could there be a relatively peaceful solution to the shard problem?

[Kesey]

I wouldn't be surprised if the event that led to the Final Days was something none of the Ancients truly understood. The figments present in Emet-Selch's Amaurot are based on his own recollection, and all they have to say about it is that it started with a sound, and that it was as if the world had taken ill. They don't seem to know anything further than that, and if Emet-Selch himself knew, he didn't care to share that info. The recording of Venat and her followers only added to this, with their apparent belief that Zodiark hadn't done enough to prevent the Final Days from happening again, while their solution was to create a second god expressly for the purpose of sealing him away so he couldn't do more. In other words, their solution doesn't actually appear to address the problem, and given their dismissive attitude towards the Convocation, they come across as surprisingly arrogant and unthinking.

... and, of course, their solution to prevent the destruction of the world directly resulted in the destruction of their world, which is just icing on the tragedy cake. I really hope we haven't heard the end of all of this, 'cause Hydaelyn and/or Venat has a lot of explaining to do. Or apologizing, or both.

I don't think the followers of Venat were dismissive towards the Convocation, nor were they arrogant and unthinking. Its pretty clear that open debate and discussion were highly valued by Ancients of Amarout, yet Venat's followers confirm that the Convocation refuses to hear what they have to say about the summoning of Zodiark. Venat's followers feel backed into a corner, post-Zodiark but before Hydaelyn, because the Convocation had become tempered to Zodiark, literally forgoing a pillar of their civilization--debate and discussion--to stay the course for their new god. Even if this is the wrong choice.

Furthermore, there isn't any evidence that sundering the world cause "destruction" of their world. But this like many other things needs to be cleared up by Hydaelyn and I think given the revelation of Shadowbringers and the implications of the WOL's history, we need to have a long over due chat with Hydaelyn.