Co-opting Thor as a superhero was a clear commentary by the writers on how superheros and theism are intertwined. The most popular supers of our cultural imagination are Jehovah, Muhammad, Buddha, et al. So this is no sort of new phenomenon, but a secular reinvention of an ancient one. Apparently there is a deep psychological need for the great Father or Mother, and superheros are a way that modern markets attempt to fulfill it. Or to sedate it.