User blog comment:JustSomeDude.../759 - So That's a Thing.../@comment-24724196-20140905000548/@comment-1940096-20140905010446

Actually it is common knowledge that you don't always die from being stabbed in the heart. It's more uncommon for a person to survive being shot in the head. Besides that it has happened before plenty of times in other manga so Oda would have known that. It's ignorant to think otherwise.