It's entertaining for sure, but it is pseudoscience at its finest. He talks much of mainstream academics but then doesn't feature a single interview with a critical academic. Nor does he publish in any journals that are peer-reviewed and so open to critique of his methods and ideas. Without context from other experts, it's easy to miss how much he cherry-picks details, disregards studies that don't support his views and leans too much on stories and rumours.
Good watch though.