You know, I'm not even mad about the whole seatbelt thing. I'm going to be optimistic, and assume that Amberlynn is not blaming a shortcoming of hers on the misbehavior of a child.
She fessed up to it preemptively, instead going through her characteristic cycle of posting the clip, letting people point it out in the comments, ignoring it, and then making some snarky shitty comment later on twitter. She said it's "her bad", she said she learned from it, she said she'll be more careful in the future.
It's this kind of self-awareness and accountability that separates us from the lolcow. So it was just unusual to see it here.