Because most of the defenders of this mini-serious likely believe that the Bible is a book of fables, not worthy of being accurately depicted. They are no different than godless liberals in this respect.
Sad, what Christianity in this country has sunk to. God is no longer esteemed as the awful, ineffable One to whom all creation will one day bow. He is just entertainment, on the level of "Star Trek."
Or Star Wars, written with a religious theme.
Hear, Hear!