That's such a sad story, the poor baby. I assume she thought her milk would come in eventually, you get told a lot during pregnancy that this may take time.
I didn't produce milk with either of my pregnancies (neither did my mother or grandmother). When I had my older son I didn't produce any milk at all, not even when they tried to show me how to hand express. I was told he was fine, he was screaming hysterically because he was newborn and some babies cry a lot and to just keep right on with breastfeeding because he is getting something even though there was no milk and he wasn't latching on. In my notes they put that he was 'hungry and distressed' but told me he was fine, that there was no issues and I should continue breastfeeding. There was minimal support. At one point they took him away from me after I had a seizure (I am epileptic) and he was asleep when I next saw him, I suspect he had a bottle feed but they didn't tell me. They continue to encourage me to breastfeed despite absolutely no milk being produced till I insisted on him having a bottle. They absolutely would have let me take him home even though he wasn't breastfeeding and let me think it was fine to carry on.
With my second son I spoke to the midwife beforehand and told all women can breastfeed and I didn't get enough support the first time round. Predictably my milk didn't come in again. I was told there was no one available to help try and get him to latch on, that I was not allowed to access a breast pump and would no be able to speak to a lactation consultant. I said I would then be bottle feeding and the midwife rolled her eyes and said the kitchen was down the hall. When I read my note she had put that I had no interest or commitment to breastfeeding despite support offered.
My post natal care was appalling both times and my children were only fed because I insisted on bottle feeding. My milk never came in and they absolutely would have let me go home without being able to feed the baby. I think most women would work out to bottle feed on their own but this woman was particularly vulnerable and she should have had more support.