> He goes out of his way in the book to label skepticism and criticize it.
Respectfully, I disagree, his criticism reads to me primarily as a criticism of dogmatism. First and foremost he seemed to identify as a "scientist", but he also maintained that you can't have effective science without skepticism.
> He did not wish to be thought of as a skeptic.
I would just differ by saying "He did not wish to be thought of only as a skeptic," I am not sure if that is a complete departure from your intent.