We're back to the original question, though. Whether it's cuddly ol' Jesus or some other figurehead, the movement still needs a central sacrificial offering of Yahweh to itself. So could the bad guys in the story possibly have had the free will to change the plot?
At the age of five, Skagra decided emphatically that God did not exist. This revelation tends to make most people in the universe who have it react in one of two ways - with relief or with despair. Only Skagra responded to it by thinking, 'Wait a second. That means there's a situation vacant.'