Before anybody else makes any claims about how an unborn child can or can’t be supported by a brain-dead mother, let us consult some authoritative medical source (and no, I haven’t read the whole thing yet):
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3002294/
One life ends, another begins: Management of a brain-dead pregnant mother-A systematic review.
Abstract.
Background
An accident or a catastrophic disease may occasionally lead to brain death (BD) during pregnancy. Management of brain-dead pregnant patients needs to follow special strategies to support the mother in a way that she can deliver a viable and healthy child and, whenever possible, also be an organ donor. This review discusses the management of brain-dead mothers and gives an overview of recommendations concerning the organ supporting therapy. (SEE LINK FOR REST)
Well obviously all of us are better able to diagnose this woman and treat her then the doctors in that hospital where she was actually laying.