Yeah, I was surprised nobody mentioned it before me. I think part of it is how they ease you into it.
You go from thinking "oh this is some nice cinematography, seems like they'll do some interesting character development" to suddenly realizing... well I'm not even sure how to explain it. It gets weird.
It had a weird fandom as well. All you get to see is a cult easing the protagonists into their cult stuff, but some people were full "yeah, female empowerment!" I mean, I get it, but they basically fell for the cult rethoric.