Dang, I hate negative progress!
I definitely agree with the emotional argument bit. People's perceptions about CC on campus are usually neutral to negative. Unfortunately, very few people are willing to re-examine their initial reaction when presented with facts and statistics. I hate that, considering I love to argue with facts and statistics!
How do you win a debate with people operating on prejudice, stereotypes, and emotion?
The only half-way sound reason I can see for such a policy is to try to limit liability to the school.