This short is worth its time, even if just for the animation style alone.
The Backwater Gospel is a cutting horror-satire pointed at organized religion and the hypocrisy which often lies within. In a town full of 'religious' folk, there's one who isn't. The attempt to exercise that lone individual from their happy, peaceful town leads directly to the consequence the town was hoping to avoid the most.
The animation is top-notch, there's lots of gore, lots of symbolism, and even a catchy folk song. This short is really only lacking in duration, but that's part of what makes it such a powerful piece.
Give this one a gander when you get the chance.