The quotes from this comment suggest the nurse was trying to use her position to evangelize to Mooney, but that's clearly not the case when you read Mooney's full account. The nurse was clearly trying to comfort a person in distress. That's part of a nurse's job. "God brought you here for a reason" is not a line that would comfort me but it was evidently comforting to Mooney by her own account, so I'd say the nurse read the room accurately and did the best she could given the terrible situation and her position in it.
Christianity is a popular religion in Mexico, and most of the people that nurse has dealt with recently are probably facing potential deportation back to Mexico. There isn't much you can say to comfort a person in that situation. Appeals to faith could reasonably be one of the few methods the nurse has to offer comfort. That's certainly better than the nurse being cold and uncaring.
Or maybe I'm just "fucked in the head".
Missing context from Mooney's account:
> I told her I had only recently found God, but that I now believed in God more than anything.
> At the time, I didn’t know what that meant. She asked if she could pray for me. I held her hands and wept. I felt like I had been sent an angel.