I think it's... like Ayu's alterna PV? Pop stars are just.. getting created every day, and every singer will be replaced if sales are not good, or if there are scandals. It's a very sad fact, but it still remains there.
SM has so many bands... SNSD, Wondergirls, Super Junior, BIG BANG... seriously they have their own merits, but who knows if they're facing the same money issues like these boys here?
I think it's sad if Korea might not support them much or whatever from now on, but I think it's a good thing to move on, to somewhere else where things are more fair, and that you won't get restricted.
Moreover, if a Korean fan were a true Tohoshinki fan, he/she would follow them wherever they go... or at least that's what I believe in.