...wait, how is this an "unfortunate blow to Uematsu and Square Enix"? Nobody was making any money off of just the music at this point and people who torrented the OST ended up even more excited to get the actual game...which they will have to pay money for...once it comes out. No ones going to be all "I have the OST so screw the game" now, they're going to be "this music is awesome and the game will be too". Since when is free advertising, which this basically is, a bad thing?
Oh they knew, they knew perfectly well. I doubt SE's people are crying too hard about the leaked OST, especially since they haven't really tried to get any of the sites hosting it to stop.