It was the weirdest thing for me too. I loved Language Instinct when I read it and yet there was ‘something’ I couldn’t put my finger on that wasn’t right about it.
I had a similar thing with How the mind works. I just couldn’t “see” what was wrong but I could feel it.
It wasn’t long after reading How the mind works that I dove deeper into philosophy and learned about various theory of mind stuff. That’s when it all made sense.
I hadn’t read anything of his since — I know he’s written a lot of things – but knowing that his footing isn’t my footing, I don’t see any reason to read his stuff anymore.