I could see if I can rewatch the first series just to refresh my memory, but I'm thinking more and more that the first series was a documentary showing what childbirth is like these days, but now it seems increasingly like a drama. I don't recall from the first series that they spent so much time on interviewing the parents, nor that they did so much compare&contrast between mothers in such differing situations.
I felt that there was very little explanation of the need to do the McRoberts manoeuvre or what that actually is, but they got some great shots of very concerned midwives without really focussing on why they were so concerned. In terms of information, there was a serious lack of it. If I were an ordinary viewer, I wouldn't have learned much about McRoberts or shoulder dystocia from watching - what I do know I've learned from reading posts here.
I will probably continue to watch the current series, but I'm feeling increasingly manipulated to see this as a drama rather than a documentary.