Its just the websites friendry department that literally goes through youtube and finds anything with their content on it and sends a copyright claim to youtube despite what the video is. Its like this movie reviewer I watch, one of his things got copyrighted stuff claim then he literally messaged the creators of the film and they not only allowed it on youtube but featured it on their website.
Youtube is going down the stuff hole. Just a note on this whole thing, Americans seem to go on about Australia's 10 games that were censored and think the whole country is stupid because of it when in reality Americans sue other Americans on a regular basis and the copyright system there is loving horrible.