hmmm, i dunno Lamont, Kefka was the kind of person who strived for ultimate power to make himself a god, and he wanted others to acknoledge his existence as one, if he put himself into a time loop that would mean that people would forget him which was no good in his mind. Plus we've seen it first hand that if all the little who's in whoville don't like what he's doing, then it's the deathray for them.
Also, Galdes just plaguerised Garlands strategy, but he was stupid enough to put himself into a five second time loop of repeating himself over and over again... Idiot.
