I have met a lot of people with PhD's who have some very unusual ideas. Having a PhD in anything that isn't science is generally a sign that a person couldn't figure out what to do with their lives in the mid-20s and had parents with a decent amount of money.
My point was that he makes no effort to hide what he believes, and hasn't been "taken in" by anyone. Some people ... some educated, extremely successful people, like Mike Adams and Ann Coulter ... simply don't believe in evolution.