Years ago I had found his channel and liked it, and then some video (I don’t remember the title or even subject at this time) came up on a subject I happened to know quite a bit about. He got to some point in an explanation, bungled it, and then hand-waved it away, saying the details were unimportant.

Stopped caring about anything he had to say after that, and I also then realized that there was a an entire genre of “person with no actual expertise reads Wikipedia articles and explains them with good lighting and high production quality.”

And you'll see the exact same thing here on HN.

Comments here should be read as opinions, not as facts. I see it every time there is a subject I know deeply about, 90%+ of the comments are either factually incorrect or just bad opinions.

Same. It was the "How The U.S. Ruined Bread" video for me after which I started watching critically and found the editing style to be over the top and makes it harder to think about the content while it's being presented. So I eventually stopped watching.

Interesting. I had a similar experience with Veritasium’s video on kinetic bombardment, where I think they dismissed the concept based on tossing bowling balls out of helicopters onto sandcastles.

Try Sarah Pain for middle/eastern history.