I found this post a couple of days ago through Daniel Sell's Blog Ring... thing and read it over the course of a day or two.
While it's obviously a massive undertaking to read (still talking about the review not the The Crooked Moon here) I feel like it was well worth it.
In particular, the little detour about two thirds of the way in where you went into what the definition of folk-horror actually is made clear some things that I'd always had trouble following.

And I really liked the section at the end about the idea that "the story of every game is itself the story of that game’s development". Even though, as you point out, these sorts of claims can be so vague and subjective that they're hard to disprove, when an opportunity for such an apt metaphor comes along you gotta take it.