I have Monnie. The case I read about, the mother was a nurse which was why the Ob let her do it. The Ob's in the story said they can't see it becomming a "regular" thing and that many women didn't know about it or want to be that involved in it.
There aren't suppose to be any more (or less) risks involved as the medical staff still do all the technical work - but the mother's hands were guided to the baby and she lifted them out of her womb (with a little assistance) before they took bubs to do what they needed to do.
It was certaintly food for thought when I read about it.