And the total indifference of the heroes.
Much like whenever there's an 'instant clone' machine laying about, and the clones die, no one so much as sheds a tear.
And I think that's part of where the idea of Fluttercruel came from.
Fluttershy, "You're the nightmare."
Fluttercruel, "Nightmares aren't real. I'm as real as you and my NAME is Fluttercruel, not 'nightmare' stupid."