User blog comment:B214/General Discussion/@comment-29963364-20161223084324/@comment-29963364-20161223104012

If that were the case, I'm sure that it would've been mentioned or even hinted at in the story.

Marius Tepes, Rizevim Livan Lucifer, and Euclid Lucifuge, did to extensive research and experimentation with the Sephiroth Graal, after all.