It was admittedly really confusing because she said both "it was the only way to defeat almighty Zodiark" and "yes, it is as you said" to Y'shtola questioning if giving us the potential to manipulate of dynamis was the purpose of the Sundering in the same line. Was that her purpose all along? Or was that just her trying to make the best out of the bad situation? It's not nearly as clear as anyone in this thread would tell you. I'd be really interested in learning how that line was in the original Japanese and how it was translated in other languages.