By the Twelve Theo you are such a troll lol.
I don't know that it's fair to say the ancient Ascian's are to "blame" for the destruction of their planet, but more like maybe they went too far without knowing exactly how far they had come. Something akin to the Eldar inadvertently summoning Slaanesh into existence from the War40k universe, only instead of engaging in ever-more degenerate debauchery, the Ascian's pushed the envelope of creation magic, making and remaking over and over again until the fabric of reality began to unravel. So, not "blame" in the "this is all their fault; they're bad and they should feel bad" sort of way, but more blame as a sense of taking something for granted. A kind of softer hubris if you will.
Having said that, I personally wouldn't mind if there was some other greater existence being kept in check by Zodiark. It's been awhile since we had some kind of giant space flea from nowhere, and I'm fiending for a hit.