Maybe the discourse I've encountered isn't as popular a take as it seemed to me. In the past, even recently, when I've been asked for horror game recommendations, and I include Bioshock in the list, I've had push back on Bioshock being considered horror at all, which would devolve into a conversation about what makes something horror. They would argue that Bioshock wasn't horror because it wasn't supernatural or "scary" or gorey enough but I would argue it contains all of those things but also that horror doesn't have to be scary or gorey to begin with. It's hard to remember the details of our debate now but that was the gist.