Not everyone loves Prince, which is... well, whatever. To each their own. All I'll say is this: Purple Rain is a ridiculous song in anyone else's hands. Ditto with a lot of his catalogue. The final crescendo, in which he wails in a declining arpeggio, should by rights be silly, but it's the most powerful part of the song.
If the video gets taken down (which is likely), it's because Prince was a notorious stickler for not having his stuff on youtube (which explains why there hasn't been a Prince SOTW yet).