You're... honestly not missing out on all that much, although sometimes they're cool. It's all pandering to existing fans of the comics, so there's no point if you're not going to get the tiny references. Honestly, I only responded in the first place to gush over this particular post-credit thing because it's AMAZING!!! I just disagree with your premise. You're saying the "war" should have been more gritty. I'm saying the war wasn't a thing in the first place. As you said, they talk a bit early on about some otherwordly army showing up. But as the film pointed out, the villain was actually a) insane, b) incompetent, c) a master of illusion over any other skill. The whole war thing is not really the point. It's just a random setting for the heroes to show themselves being heroic at the end. Making it more gritty would have done little or nothing, because the film isn't about war or it's gritty-ness.