No, you don’t understand. The guy was only interested in getting out of the draft. He did not get his conscientious objector status and so left for Canada.
The professor was a William Ayers type that made it his job to advise students on avoiding the draft.
So he left the country to avoid being drafted, what does that have to do with the claim of men becoming American Christian ministers merely to avoid being drafted, and then devoting the rest of their life to Christian ministry?