You know the law is broken when even legal experts can't exercise their right to the fair use of copyrighted works for the purpose of educating others about copyright litigation.
Ah, but they did exercise those rights. Oh, it was expensive; too expensive for the average creator to have exercised those rights. I think that's the message: the cost of making sure you and your content are treated correctly.
I don't think they got to exercise their rights. They only succeeded by using private back channels, and they only succeeded in making the problem disappear. If they had been able to exercise their rights, they would be able to sue for costs. They demonstrated that the processes provided by Youtube to exercise their rights do not work, and for people not in the inner circle your only recourse would be to sue for damages.