Mr. Beast is ultimately the star of the video, so he has to micromanage at some point or another. That's his brand. He can't let his employees plan a video that he won't like.
I did find the comments about all-nighters off-putting... And I personally don't like working on multiple things at the same time. But that's personal preference; I don't particularly like Mr. Beast's videos, so I don't see myself working for his company any time soon.
I'm more concerned about Mr. Beast overextending himself. With Mr. Beast (the person) being the brand and the star, I don't think he can scale himself much more.
I think his personal involvement in any given project is already quite limited. He’s created a huge, soulless machine that churns out videos for the sole purpose of achieving some YouTube high score, and he just pokes his nose in here and there to be the face of the operation and ensure it remains well-oiled.
Edit: that ”just” is obviously doing a ton of lifting because it’s likely still a huge amount of work on his part, but my point is that it’s not like he lovingly crafts all these clips by himself.