User blog comment:FTWinchester/Season 9 concepts/@comment-198.22.122.159-20140107180007/@comment-1509826-20140112181633

Truthfully I don't think the writers what to involve Angels and Pagan deties fighting, to avoid the obvious implications of one relgion being better than another. Just look at all the trouble they got into for Hammer of the Gods, people are still complaining about it four years after it aired.

Personally I'm unsure about why the angels fighting would make the pagans stronger, upto date there seems to be no simularities between the two parties, save that there both held as gods or higher beings by humans.