IMHO this guy is hilarious. He is a very good Kefka.
What he said in his rant, is the proof that the majority of FFVI fanbase(and FFVII haters) never played FFVII(or played it a long time ago and forgot everything about it).
He only killed a flower girl? Don't make me laugh, and go play the game again. "Momma's boy"? It's already confirmed Sephiroth was controlling Jenova.
The FFVII haters/FFVI fanboys should learn the facts, before bashing FFVII and Sephiroth, with fallacious arguments.
But the guy in the video is still hilarious.