From the brief snippets I've seen on Youtube, this movie strikes me as overly didactic and ideologically on the nose. Like it was written by a couple of theology nerds without a sense for realistic dialogue.
Did anyone else have this sense?
No, I thought it was excellent. What kind of "realistic dialogue" were you expecting? Context was the demon attempting to persuade this psychologist evaluator to do his bidding and to persuade him that he was in fact a demon, and so the dialogue fits well within that context.