I finally watched the videos posted by the OP, and they are actually worth a watch. I guess everyone here are traumatized by people coming to post ads for their own stuff
Fuer Elise is one of the first pieces I ever learned to play - simply because it happened to be in some passed on sheet music. I had no idea it was "popular", that "anyone else/most people" played it. It sounded nice. Why should others be deprived of that just because you have heard it too much? Or why should a student be deprived of it because the teacher has heard it too much? Come on already.