Marcellus... the author was probably just stating reported deaths and how they happened... I have heard of pets (mainly cats) smothering sleeping babies... and abductions... on the news, unlikely I agree but they've happend. I guess having a car accident in which your child is killed is also unlikely... but it happens.. maybe that was her point. I don't think was trying too hard to push her barrow... no more passionately than people who advise against co sleeping and their fear-mongering.

ETA: I know that not all parents should or can co-sleep.