Now that The Night King has been dispatched, Game of Thrones is turning its attention back to the prickly Iron Throne and whose caboose sits upon it. For those invested in the lore of the show’s fantasy origins, this will come as something of a letdown. But the show is not done decimating the world’s mythology, as “The Last of the Starks” also rather quickly dispatched of another dragon as well as a direwolf. Like “The Long Night,” these choices call into question what, exactly, writers and showrunners Dan Weiss and David Benioff see as being the point …