I watched the whole thing but a bit ago when it came out. He did better than just that, he frankly humiliated the program in my eyes. The points I took away from his talk were:
1. Stop lying to yourselves and figure out the hard math (mostly in relation to the refueling question)
2. Learn from the past. Apollo kept excruciating notes (I'm still discovering new notes. For example, the lunar rover's manual is publicly online). Like this article, look at what worked and what didn't. Be better not worse.
I've found in my own work I'm always terrified of failure. From what I've seen with the talk and this article, it's as if this program views failure as a selling point for more waste.
/Rant
I disagree that he humiliated the program, or the people behind it, which such a statement implies (although I do respect your conclusion). I've been following Destin for years and this guy genuinely cares. It's incredibly difficult to come up with a constructive criticism without offending people and he did a great job doing just that. He was humble, yet firm, well prepared and brought a fresh perspective to the table. Whether the stakeholders will acknowledge that is up to them. Hats off to the guy!
The refueling risk and cost is being borne by SpaceX, not the taxpayer. The SpaceX HLS portion of Artemis (aka the refueling) is a fabulous deal for the taxpayer.