I so agree. This should have been a pure horror comedy. Instead, it tries to become some kind of social commentary where the audience is asked to think about its need to witness gore, except it is 25 years behind the times and is attacking movies made in the 1980s and 90s instead of the kind of torture porn made more recently.

Plenty of people, like me, didn't even see this because we love gory horror; we saw it because Joss Whedon was attached.

Oh, they were all damned by god.

To me it's more of a compound question: What is this story trying to achieve, and would conventional character arcs be a good way to achieve that? Arc-ing a character just because that's-what-you-do can be mistake depending on what the story is and what it wants to achieve.