Religious beliefs are not science. Creationism is not a scientific theory, it is a religious belief.
It’s irrelevant if it’s truly a religious belief or a dramatic presentation. We are speaking of a federal judge and the limits of his authority. The judges themselves have private lives which should be left at home when they sit on the bench. They operate within the limits of constitutional law. Nowhere in that law are judges given the power to determine what is or is not religious in nature.