If anything, Cascade always seemed like it was quite the opposite. Some of the elements of typical Abrahamic morality were reinforced, but they were given humanistic justifications. I.E. Jessica shouldn't have done the entire football team because it cheapened her, not because it made Baby Jesus cry. The personal was put to the fore while the divine was entirely ignored.
A few staff members were into some new age crap, but that was their own deal and it wasn't part of the curriculum. The closest any of that stuff got to being incorporated into the program was when Art Tilles would lead his World Religions class in meditation once a semester or when Perk got going on any of his whack hippie shit.
Every so often the Jewish kids got to do down the hill and attend rituals with Art, but I can't recall a similar privilege being extended to Christian students. Not surprising, though, when you consider the ethnic make-up of the big-wigs at CEDU and Cascade.