Originally Posted by
Rulakir
I think they ended up retconning some of the Anyder stuff. The scene just after that one of them asks why Venat has to be the heart, that they need her as their leader and they'll miss her. This makes no sense given the context of the sundering unless we assume that the people aiding Venat were not aware that was her intention, which makes her character even worse. Plus, the Hydaelyn primal is more akin to Ysayle as Shiva than Elidibus as Zodiark, so even the heart comment seems odd knowing what we know now.
Anyway, as for the "perfect" worlds, I know it's asking a lot for realism in a fantasy setting video game, but the will to live is the strongest instinct we know of in living creatures. The idea that one planet would collectively decide to die beggared belief let alone this being any sort of common occurrence throughout the universe. Plus, "perfection" as studied in other creatures, like rats, doesn't result in that. Typically what happens is after you've removed the need to worry about food, shelter, and predators, the animals become bored. Lacking purpose, they start turning on each other and in some cases drive themselves to extinction. I don't recall a world like that. The closest would've been the one that engaged in a civil war, but "perfection" would have led to a more chaotic situation. The Ra-la planet was also fine before Metetion arrived, it's stated in the notes in the Dead Ends that her arrival and incessant questioning spurred their existential crisis.
None of this even matters though, since there was no stopping the Final Days it would've served to shake up whatever "perfect" (subjective!) world the Ancients had and forced them to collectively face a common threat, which likely would've made them stronger individually and as a whole. The Ancients loved their star and they were intelligent beings, they would've come together and done whatever it took to save it (and did with Zodiark), so to say that they were incapable of handling a crisis or deal with suffering is simply false. Ultimately, they weren't given a chance to prove themselves. It's another reason I hate that post-Elpis montage, it came across as incredibly judgmental and tone deaf.