First, what goal are we trying to achieve? Theologically, the distinction between Creator and creation is unproblematic (unless one is trying to shoehorn in creaturely co-creation, but fortunately we’re not BioLogos!).
The problem seems to me that of trying to map that distinction to a conventional understanding of methodological naturalism, when the definition of both “nature” and “naturalism” seems more informal than robust in current usage.
I’ve no clear idea of what “nature” is - and even less idea when, in MN, we’re committed to acting as if nature were not created (ie, as if metaphysical naturalism were true).