HBO’s “Lanterns” was always about its heroes’ fears, and our own

John Stewart was always going to claim his ring. That much was a given on “ Lanterns ” from the moment HBO debuted the first images of Aaron Pierre ’s John and Kyle Chandler ’s Hal Jordan – there’s that, and DC Comics’ established lore. The question was always how. The answer, in the end, was by breaking his lifelong conditioning, contradicting one of the main qualifications of heroic worthiness established by a council of…