Openly stating. He was educated as a philosopher with a PhD in 'history of science.' His entry point to conversations on biology is from the perspective of a historian of science.
He also has a degree in physics and worked as a geophysicist for four years.. I'd say he is more educated in scientific matters than most people. Maybe including yourself?
From the google, I see that was a bachelors from 1981 to go into the private sector for work that had no connection to any scientific career.
What qualifies someone as a 'scientist' can be a fuzzy continuum, but that's on the weaker side of the spectrum. Especially for someone who isn't a biologist going against the mainstream consensus of biology.