I mean I get why. The fear is that non-Christian audiences wouldn't care, and fundamentalists would find it blasphemous. I would love a movie of The Three Stigmata of Palmer Eldritch, but we're not gonna get it. Who would make it? Martin Scorsese? Paul Schrader? The Coen Brothers?

Actually, those are all good ideas. But other than Scanner Darkly, Dick's work has mostly attracted people interested in the pulpy science fiction ideas and not so much the existentialism and the critiques of mainstream religion. It's a bummer.