Even though she was fairly sure that Maggie was right, and that Twilight felt bad about what she'd done, it had still hurt. It didn't help that she knew what Twilight had said was basically true. Her arrival had disrupted life in Equestria to an incredible degree. The only thing that alleviated the guilt at all was knowing that, even if she hadn't come here, humans would have arrived anyway, and that her arriving had at least given both the humans and the ponies enough information to allow a peaceful first contact. 