1. KPIs, for Beast they are CTR, AVD, AVP, will look different if you are a startup. I am willing to bet he knows his metrics better than >95% of startup founders. Because he is literally hacking/being judged by an algorithm, his KPIs will matter more and can be closely dissected. Startups aren't that easy in that sense, but KPIs still matter.
2. Hiring only A-players. Bloated teams kill startups.
3. Building value > making money
4. Rewarding employees who make value for the business and think like founders/equity owners, not employees.
5. Understanding that some videos only his team can do, and actively exploiting and widening that gap.
The management/communication stuff is mostly about working on set/dealing with physical scale. You need a lot more hands dealing with logistics, which requires hardline communication and management. In startups, the team is usually really lean and technical, so management becomes more straightforward.
I am also getting some bad culture vibes from the PDF and really dislike the writing style. I think it's important not to micromanage to the extent he is--it's necessary, maybe, for his business. Not for startups. Interesting perspective, reminds me of a chef de cuisine in a cutthroat 90s kitchen. The dishes (videos) have to be perfect, they require a lot of prep and a lot of hands, and you have to consistently pump them out.
Some people may not like the fact that they pull all nighters, but that's a matter of opinion. Clearly some people do like the terms of employment, otherwise they wouldn't work there.