Nah, that title was a complete troll. I may not know much, but I do know that one would have to know what the actual fuck is going on in a music video to be able to break it down, in which case I don't. If I had an observation though, I'd say SM tried to pull a T-ARA with this shit.
I will, however, explain what SM was trying to achieve in this music video - which, in its own way, is pretty fucking genius but pretty fucking dumb at the same time.