On the basis of this, discovery of/contact with ET life would be in conflict with the book verion of the religion. Which would be the bit that would require explaining by whomever's job it is to do such things.
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.'