Sure, there's a lot of fun little Easter eggs, but I think Pizzolatto is taking jabs at those who obsess over the wrong things in television series, those who are quick to draw that conclusion that Tuttle's yellow tie must mean he's the Yellow King, or that the John Deere logo might suggest something similar. That's mistaking the forest for the trees.I really hope we get a good ending, but there's been so much red herrings and little jabs at possible clues - like the Revival Preacher's coffee mug (it's a John Deere mug - a yellow stag), or the two kids that Harrelson beat up - the blonde wearing a t-shirt with black stars,
What did Hart say in the first episode? "You attach an assumption to a piece of evidence, you start to bend the narrative to support it and prejudice yourself."
There will be no literal Lovercraftian monsters in the final act, there will just be people caught doing horrible things. Isn't that scary enough?