I think the fundamental flaw people make with batman is assuming the legal system works
Do you think exploring the world is still one of Eren's dreams? I only ask because in 72, he didn't seem quite as excited as Armin, but the next chapter it sounded like he was still very much on board. Plus I've heard others say he's uninterested now, and may be open to the idea of settling down once the titans are no longer a threat. Personally I think Eren wants to travel the world with his friends, not miss out on it.