And then there's the fact that Spirit Leech is a flat 2HKO to average MP in P4, and the FF6 stat topic puts everyone at around the same (or thereabouts, meaning Celes isn't -far- above average, even if she is.) So, yeah, like hell is that a 4HKO to her MP. Somehow, I doubt Celes is at 2x average MP.
Oh, and then there's the fact that there is still nothing to say he can't Spirit Leech in QC phase.