I’ve liked some of his other videos and made it in twenty minutes. He has three arguments: SpaceX is late and over budget on HLS, booster recapture is the easiest part of Starship’s technical risks and Starship is bad value for money.
On the first two he’s right. Starship was, per SpaceX’s proposal to NASA, supposed to be almost ready by now. It’s not. But neither is any other leg of Artemis, and there is no unforgivable delay in the timeline. (To the degree there are stupid delays, it’s because the FAA was playing water cop.)
Recapture is the easiest technical challenge of the programme. Partly because SpaceX already demonstrated most of the tech with Falcon 9. Partly because in-orbit refuelling is unprecedented. The lunar lander was one of the easiest parts of the Apollo programme, by similar measure—that doesn’t make it unimpressive.
The last—bad bang for the buck—is a value judgement. Do we want a heavy lift booster or more Mars rovers? If we want sustainable access to space, we need cheaper launch. If one doesn’t care about that, rovers are better spend, but at that point I can start arguing for feeding the hungry with those bucks.
I stopped watching when the criticism of Falcon 9’s price came up. Why should SpaceX, a private company, undercut itself? It’s already the cheapest (PSLV gives it a run for some orbits), most reliable and most frequent launch provider in the world. It makes sense to capture the delta as profit, in part to fund things like Starship. (There is also no inflation adjustment.)
In summary, the technical criticisms are accurate but out of context. The value judgement is subjective. If you don’t value cheap, frequent space launch of course Starship won’t make sense for any amount of money.
EDIT: Kept watching. The energy math on second-stage reëntry is okay as a first estimate. But we don’t have final numbers for anything. And there are a lot of unknowns, e.g. final dry weight, how much energy the heat tiles can store and dissipate, if transpiration cooling could work, how plasma could dissipate energy, whether compression heat could be redirected away from the craft, whether firing mid-descent could reduce heat, et cetera. We certainly don’t have enough data to reject it ex ante. And the second stage being unreadable doesn’t tank Starship, though it probably does Artemis.