I think this would be a great idea. No one came to talk to me about how I felt about Claires birth. All that happened was that just as I was leaving thr delivery suite to go to the post natal ward, my midwife asked if I was happy with the way her birth went. I was not in any state to talk about it then and there and my mind was still going 'omg i just gave birth'... In hindsight, i wish someone had come to talk to me about how I was feeling, but at the time while i was in hospital it was not something I even thought of. I went home and the next day had the blues and couldnt stop crying. Even DH wasnt too interested in talking about Claires birth and just sort of said yeah or really short responses to everything I told/asked him. Claires birth was not really traumatic, but it was still an event that I felt I needed to debreif afterwards kwim.
so yeah i think it would be a great idea for mums to be able to have someone sit down with them and just debreif afterwards.