YouTube is getting stricter with copyright: Sounds off

Wanted to listen to The Bucketheads "The Bomb" on Youtube, found a video: http://www.youtube.com/watch?v=P2THjmRLyp8

BUT, heres a new one: the sound is disabled! Under the video it says:

NOTICE
This video contains an audio track that has not been authorized by WMG. The audio has been disabled. More about copyright..

I understand that Google needs to earn money and copyright is important, and am not sure how they can do this with so much usergenerated content (and seems as they dont really know either..) But if they continue like this people will just go to other sites like Vimeo ..