I think my issue is that the game goes out of its way to paint Zodiark as the evil that must be destroyed and hydealyn as the savior when it arguable is both and neither at the same time. For all inrense purpose Elidibus is zodiark but he states a few times that he is only interested in keeping things in balance. He states early on that he is only opposed to WOL because the pendulem between light and dark is swinging too much towards light. What the truth of the matter is, debatable.
But one curious thing i did note was that the souls within Zodiark cry out against Amon when he wants to reacte the calamity using Zodiark.
I also noted during the trial that Themis originally had both light an dark abilities which made me wonder if Zodiark originally did prior to Hydealyn, in the art work he is shown as having two halos originally and then one after. It could just be a thing they changed / abandoned as they went on.
Ultimately though, Elidibus was about reconcilation and so Zodiark being a tool to save them was similiar in this regard, i think this is why Elidobus extracted himself originally, in order to find a solution to the dispiute but Hydealyn sundered during this phase resulting in the situation as it was.
I will say though that hydealyns back up plan was pure madness. Shove a bunch of frightened people onto a ship where the slightest extreme emotion would result in them transforming into beasts... what would be more stressfull or emotional that fleeing the planet? IMO the moment that shop left Zodiarks influence they all would have turned.
I do hope at some point they revisit the Zodiark stuff but thats unlikely to happen unless they decide they need to undo enwalker for an expansion idea. Or they give Summoners the ability to summon Zodiark (please do this would be cool)
