So are you seriously proposing a Jesus who attracted a huge cult following, raised the dead, cured the leprous, the blind and the lame, caused so much trouble for the Jewish Elders to the the point where they broke their own sacred laws to try and eventually condemn the character on their holiest days, not to mention all the darkness and the George A Romero-style graves bursting open, yet he was so insignificant he was, to borrow your phrasing, not high on Rome's radar? Methinks I smell a plot hole somewhere.
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.'