Your ability to regurgitate creationist excrement does not reflect in any way on your performance in a biology course.
I --to some degree-- enjoy it when those holding positions such as yours give to the lurkers such sophisticated arguments against creation.
Nor does one's belief/disbelief in the completely unproven (and always changing to accomodate the lack of evidence) theories of evolution.
The centerfold/pizza box idea would probably pass muster in most collegiate fine arts programs today, but it might be just a bit of a stretch as an English thesis. Then again, given what's happening in the English Lit. biz, you never know.
But back to the point. You pose an amusing strawman, but I very much doubt the student in question was handing in creationist screeds as biology assignments. We don't know precisely what flavor of biology course this was, but I'd imagine the kid had mastered whatever it was he was supposed to know about organic systems, comparative anatomy, biochemistry, etc. Let's assume he is a solid student, since he is supposedly angling for med school. Very likely, he got an A in the course if he was asking for a recommendation in the first place.
It still seems to me this prof is quite simply imposing a religious test. Dataman called it blackballing, which is exactly right. I will grant that someone's views on the first chapter of Genesis might affect his fitness to hold the Stephen Jay Gould Chair of Evolutionary Theory at the local cow college, but I don't see what it has to do with being a perfectly fine physician.