But how we got to the point where we had to have a Batman actor explain a goddamn Batman movie to us baffles me. And it's not because of what's in the dialogue or in the plot, but because of what it implies if you believe that Gotham Harbor is currently filled with charred Bat chunks. If Batman died, it means that Christopher Nolan ended his epic trilogy with an old British man experiencing a total mental breakdown.
Christopher Nolan doesn't always provide a definitive answer at the end of his movies. Both Inception and Interstellar were constructed to keep you arguing with your dorm mates for the rest of the year. But for there to be a question at the end of The Dark Knight Rises entertains the possibility that the last glance that we get of our beloved Alfred is one in which he is battling with the growing specter of senility. He's seeing visions of the adopted son whom he "failed" to save. Joseph Gordon-Levitt rises into the Batcave triumphantly, but just before that, the heart and soul of the greatest Batman adventure in modern cinema spirals headlong into dementia.
That's more "gritty and dark" than anything Zack Snyder put into Batman v. Superman. If you're cool with Batman eating it at the end of Rises, you're also cool with Michael Caine rounding out his story arc with a sprint into his own crumbling psyche.