@youtube why do copyright holders of music claim all revenue of a video? I have a 30 sec audio clip, and get hit with a copyright notice. The video has not a thing to do with the music artist, they just happen to be in the background while the video is being recorded.
Copyright owners get to decide what happens when content in a video on YouTube matches a work they own. More info here: https://yt.be/help/peVV If you think it was done in error, you can dispute the claim: https://yt.be/help/LKJN . Hope that helps!