It's not that Disney gives a darn about pagan deities, it's that if you put religion (or gods) in a movie, it increases the chances of its getting shut out of the largest, fastest growing, movie market in the world. Right now, no major producer can ignore the Chinese market. Top draw movies are too expensive not to make a serious attempt at that market. Magic is also a no-no, so a D&D movie will probably be relegated to lower budget status as it would be unlikely to be allowed in China (stranger stuff has happened, but no studio is going to count on it).