I'm not sure anyone is saying resuscitation is obselete with DCC, that would be ridiculous. I think the important point is that resus is not always necessary, and prioritising the cutting of the cord so that the baby can be taken away and measured, over keeping the baby close to the mother and allowing them to receive their placental blood isn't very sensible either. I'm also not convinced that cutting the cord so as to collect stem cells that may or may not help treat an illness your child may or may not get is good prioritising either, but that is more personal, the cynic in me wonders whether cord blood banking is just making money from worried parents. I'm sorry if my post wasn't clear, I'm certainly not advocating refusing resuscitation on a newborn, that would be horrendous.
There are studies that suggest that not cutting the cord and carrying out resus might be a good thing, but resuscitaires aren't designed that way so it only happens outside of modern hospitals.
It's not all about oxygen from the placenta (there are studies to support this) it is also about the blood count, once the blood is in the baby's system, their body can use it. Those blood cells will be around in the baby's system for weeks. The transfer is clearly supposed to happen, because it happens in all mammals. Babies manage without it, adults also manage after losing 3 pints of blood, but it doesn't mean it's the best option if you have the choice (and of course, not all cases do, I didn't with my DS, he's doing absolutely fine, it's not the end of the world, but if I could have had DCC I would have, and will aim to do so for future DCs)
I think it is pertinent to consider that Tuteur is commenting on the American system, especially when considering the second link. It's quite clear that the risk she is talking about is due to midwives not being equipped or trained to resuscitate a newborn, which is simply not the case over here. It is widely understood that HB safety in the UK and US are not comparable. I actually think that's a pretty shocking article to bring to the attention of a nervous mum-to-be who isn't considering HB, let along HB in the US.