I don't think he meant anything by his comment. He's simply found himself backed into a corner and is lashing out ad hom style. It's the only close-quarters weapon in his arsenal.
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.'