Its not far-fetched to claim God as some sort of theory. I mean, refer to Aristotle, Leibniz and Berkeley. Those three philosophers are on the top of my head among others who use God as a founding principle of a physics sort.
For example, the Catholic Church's darling Aristotle began the notion of the "unmoved mover" which was blown out of proportion. However, the unmoved mover was mentioned in Aristotle's "Metaphysics" as the one whom set forth motion in a platonic model of the universe (where earth was the center, that's right the Christians borrowed the idea from a philosopher, so don't blame them for claiming that the world is flat or the solar system isn't heliocentric, though it is also found within their bible). Hence, I do not think someone claiming that God can be some sort of physics principle in their theory is at all absurd.
I wonder if anyone even reads the stuff I post in this section.