I like where this is going, it's mature enough to not wave the war away with a smile "and noone actually died" and it's showing the deaths he caused by his actions.
Damn, sucks to have the one opponent in the series who actually had a head on their shoulders so far get offed like that. Unless big dragon form isn't 100% real and they can still revert back to human form after being dragonkilled, but I doubt that.