This is more from the same interview.
"In the case of comic book stories, it's the war between white page and ink. And who's to say that the page might want that particular story drawn on it? [laughs] What happens if the page is a bit pissed off at the story that's drawn on it? So I thought of the page as God. The idea being that the Overvoid – as we called it in Final Crisis - of the white page as a space is sort of God. And it's condensing stories out of itself because it finds inside its own gigantic white space, self-absorbed pristine consciousness, it finds this little stain or mark, this DC Multiverse somebody has 'drawn'. And it starts investigating, and it's just shocked with what it sees, with all the crazy activity and signifying going on in there. It then tries to protect itself from the seething contact with 'story' and imagines a race of beings, 'angels' or 'monitors' (another word for angel, of course) to function as an interface between its own giant eternal magnificence and this tiny, weird crawling anthill of life and significance that is the DC Multiverse. "
If god/presence/overvoid/pm are all the same self-absorbed void in which someone 'drew' reality, who is the in-comic representation of the drawer? how do things come to be? Is it just the 'physiology' of the void to create crap arround? Clearly the presence isn't even omniscient then, it's not particularly aware of itself at all.