They MIGHT try to make a case in court, but it does not suggest that they would be either in the right to do so, or backed by this law.
It really doesn't change that.
It DOES say that if Wiccans and Muslims can make a valid arguement for their ideas, then they would be able to keep a good grade.
I think many of my college instructors discouraged discussion, and I went to a small college that featured small class size and discussion groups. On the surface we had open discussion, even in Biology.
I recall being broken up into small groups to discuss, What is Life? What I mostly remember about that exercise is that no one had the knowledge needed to discuss the issue. The people in my group were not even aware of the fundamental difference between a virus and a bacterium. In science, there is a minimum level of competence required to discuss challenges to orthodoxy. That is made clear every day on FR, where challengers to evolution cannot even correctly state the theory they oppose, and hve little knowledge of the content or history of biology.
The best classes I have ever had were taught by opinionated professors who were clear about their expectations and demanded answers that conformed to clear guidelines. The worst classes were taught by people who pretended to be open minded.