What exactly do you mean? I think you missed some things by skipping through it or not paying attention. It's true that not all things are explained in an obvious manner but that's what a mistery is supposed to be,right? Actually there is a robust closure of the previous "arc" (as you said), a lot of things have become clearer while others still remain a mistery. I think that somewhere in episode 5 (might be 4 or 6) the cult people said something about never before seeing a witch so powerful, later on, the witch herself says that "things are coming" and that her power has grown and she needed to protect herself. The conclusion of Episode 9 is a normal course for the early warnings we got in previous episodes. And, not to mention, they found out who the witch was, the main "bad guy" in all the previous episodes... What more closer is there to be had?
P.S. don't mind the cabin fever guy, he's a troll that loves to jump on the hate on DK bandwagon for some reason. Yet, he always comes back for more of his games

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