I've grown a bit weary of antagonists getting redemption arcs or getting to go out on a sympathetic note no matter how depraved they were prior to their defeat. I'm not opposed to it happening every now and then, but it's a hand that gets overplayed across various media. Not all villains deserve redemption, and not all villains who deserve redemption should end up getting it. Life doesn't work that way and neither should storytelling.