Please don't down vote me, but I read this on a bookmark (swear to gourd) once and thought it was HILARIOUS....
"Necrophilia means never having to say you're sorry."
Because as adults, we still love these stories, but being adults, we have a better understanding of the way the world works, and we see things not through the innocent eyes of a child, but through the eyes of a person who has experienced the good and bad in life. We've gazed into the abyss of humanity, of deception and all the darkness that lurks within and we see that these stories too have a darker side. Lets face it, once you stare into the abyss, once innocence is lost, once a scar has been made, there is no going back.
Flynn and Naveen were added on after the list was made. I think Hans isn't part of it because we already know his flaws and these princes' flaws were overlooked.
"Necrophilia means never having to say you're sorry."
Our words are after all both our greatest tools and our most dangerous weapons :D