The companies need YouTube more than YouTube needs them. This idea looks and sound ridiculous. There is tons of positive content on YouTube already, it doesn't need to be highlighted. Just look for it if that's what you want to see.
Recently it seems like YouTube is trying run creators off the site. If they do the creators will just move somewhere else and the advertisers will too. The advertisers really don't care about the content, they just care about complaints. More than that they care about money and eyes on their products. They aren't going to get that from newspapers, so if YouTube just waits they'll come back. Advertisers have nowhere else to go.