She could have had a high risk pregnancy, diabetic maybe, cancer? A subsequent pregnancy could harm her physically. Devil is in the ddtails, and once agan I may have knee-jerked without all the facts.
My thought on this was that something had come up as she was set to deliver, and there was a realization that the woman could not sustain another pregnancy. If so, this is really a terrible thing to face at what should be a time of pure joy.
They don't have to disclose the medical details of this particular woman. They just need to address different hypothetical situations, and explain the ethical principles which are guiding their policies.