I hate ads as much as anyone and have been blocking them for almost as long as ad blockers have existed. I still acknowledge the fact that ads are the primary revenue source for a lot of things on the Internet, and I selectively enable them for content I want to pay for.
How do you think Youtube is supposed to survive without ads or subscriptions? When they puts ads on their site, the unsaid agreement is that you exchange your ad views for their service.
Why would they have to keep up with their appraisal? There is no downside to not doing it, other than not being worth as much if they want to sell or IPO, but that would be true even without the equity firm’s investment and appraisal. No law says they have to meet the expectations set by a single investor. There is no legal duty requiring a company to maximize profits or shareholder value.
However, even if such a law requiring them to maximize profits existed, it’s very reasonable that they would legally continue making the same types of movies that earned them that value in the first place. There couldn’t possibly be a requirement for them to change business strategies, else every company would eventually all end up in the same, most profitable industry. They’d all be selling movie theatre popcorn or something.