Funny! But that article is horrible. The letter starting 'Right. So her first labour was 12 hours...' hits the nail on the head.
I was fortunate to have two relatively natural labours (although I did - shock horror! - expose my unborn DC1 to a morphine based drug), but I would never lecture people on how they should cope with childbirth. She doesn't once mention how mother and baby death rates have dropped compared with when these medical interventions weren't available; so much for perfect biological design.