If it was more widely known that the donation would be done when a brain-dead body was still warm and breathing, would there be fewer donors? Would families be more likely to over-rule their loved one's instruction, or less likely? It is hard to know.
But we do know our donation rate is already low so more candid information could not do much harm. And it just might raise the rate of donation if the public go used to the idea that this is how it has to be done.
For the family at the bedside it means a different farewell than the vigil most have experienced. After the Marsh family had made their decision it was not until the next day that Gabby was wheeled to surgery.
Her living organs would be transplanted to at least six people, all of whom would have been on a waiting list hoping for the generosity of a grieving family.
Organ donation salvages something worthwhile from tragedy and grief. Kathryn Marsh told reporter Anna Leask the decision to donate was easy because they knew it was what her daughter would have wanted as it was specified on her licence.
They knew her as thoughtful, adventurous, caring, a "rock star academic" at Mt Albert Grammar and clearly popular at Auckland University. Student friends have started an online appeal to fund a scholarship in her name.
It might help someone else to have the education she might have had, just as her lungs, liver, heart valves and other organs are giving a new lease of life to their lucky recipients.
More than 550 people are waiting for organs or tissue transplants in New Zealand at present. Nobody knows how many donors we have. There is no official register, drivers licenses are an unreliable guide because families at the bedside must give their consent.
Hopefully, stories such as that of Gabby Marsh will inspire more donors to tell their families they really mean it, and that if their life ends too soon they too would give what they could to extend the life of others.