Keep in mind that Josephus remained an orthodox Jew throughout his life. It'd be like if a couple of centuries from now, one of Hovind's descendants - horrible thought, I know - were to 'find' a draft of God Is Not Great with a passage about how amazing Jesus is.
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.'