That said, I think being an AA fundamentalist might be a useful way of breaking the cycle.
Also, I think you can practice the core steps without the other dark elements, i.e. the disease that tells you that you don't have a disease, or, anthropomorphism alcohol (cunning, baffling, powerful). One can come to shape their own practice without constantly submitting to an untrained authority figure or a collective group one.
Bill Wilson wasn't a god. He wrote a text with a lot of sense and a lot of nonsense.