Now I've started getting infringement claims against classical music that we are using (that we have also licensed) because a different company owns the license to a different performance of that piece. When I stated we had a license to this piece through another company, it was rejected and the video was removed from monetization. The only way to get out of that black hole was to contact the CEO of the company directly and appeal to him to read the license agreement we had.
I don't have the links handy, but when I started researching this problem (automatic copyright detection and fair use or works in the public domain), I found hundreds of people experiencing the same problem. Google is in a really tough place. Wedged between the typical youtube uploader and the recording and movie industries, this system makes sense. The problem is that all of the well intentioned people are getting swept up in the solution, and now high profile people are showing how broken it is. A system that makes your genuine users frustrated and exasperated does not have a bright future.