Well I think there is a much bigger picture here. Google does take down videos--however, they tend to go after the much smaller acts that make up the majority of their channel, than their top acts that bring in majority of their income.

The views the avg person may get..is what five? Bigger acts like Michelle Phan, Zoella, Destorm and more bring in 100K-3 mil + in views a video. These are the people that Google let's slip by.

The issue is not 'how do we keep people from uploading illegal music'...the issue is, why is Google being lazy and not going through the necessary protocol to license out the music through the artists.