I think this just shows, trust the scientist that spend their whole years studying stuff like sleep. Don't trust random self proclaimed "internet scientists". Best would be to find experts that are humble about what they are unsure of what the field knows.
He spent 100 hours trying to debunk the book, but it just shows - if you are highly motivated and biased to prove something you are emotionally motivated to find you will find the way.
I do the same. I believe random bullshit that can change my mind and preach it to my friends and then 2 months later I change my mind. I am sorry to my friends, but at least I don't post blogposts trying to debunk scientists