I listened to that, and my main takeaway was that the guy's Adderal prescription had run out. Christ was he all over the place.
Wait, is that us?
I think he is by and large correct, but if you're doing long-form content a script or at least an outline is rather important.
My biggest criticism beyond the presentation is the fact that he offered no evidence that there is an audience of young males out there hungry for material to read. There might be a
reason the market is what it is. If somebody made a Baen Books for young readers, or hell, Baen Books created an imprint for young readers, there's no data -- other than a gut feeling -- that it would be successful. And that's without getting into the current state of YA librarians and what they're willing to buy and actually put on the shelves. There's also the fact that Baen is distributed to book stores via Simon & Schuster...which sometimes makes me wonder exactly how independent they truly are. Kind of a chicken and the egg conundrum.
A counterargument would be the fact that what YA publishers are publishing is book after book about same sex relationships, trooning out, boring messagefic about evil white men destroying the environment, teen girlbosses in the making and so on. If there's overwhelming evidence this sort of thing sells, well, I'd love to see it.