I haven't really listened to him much, didn't really like his style, just one or two of his sleep science episodes but I thought it was well-balanced and at each topic he added caveats etc. and always made sure to tell people to not just blindly trust the science but see what works for you. Can you point to any examples of him grossly misrepresenting the science on these issues. My personal hunch is most people don't watch the long-form stuff and only hear this second-hand in a short-form context where a lot of the details are stripped out.