Thanks. I wrote something on Peterson's Maps of Meaning and on his debate with the antinatalist David Benatar, on my older blog, which I wrote on before I switched to Medium (link below).
Religious myths certainly seem imaginative and not strictly logical. But even human reason isn't purely calculative: our concepts are simplifications or idealizations, we try to understand the world to control it, and holistic judgment is largely intuitive. Dreams and memories are also creative or imaginative. Even self-consciousness is creative since it involves monologues: we tell stories about ourselves, which are typically what we want to hear.
In short, it's not just religion that would go if we were strictly rational or calculative like Star Trek Vulcans.