I don’t know the “rules”, but I’ve seen my share of preemies when my siblings were in NICU and very few were that pre-term.
As far as the news story, the parents are grieving and they claim the baby was given no care despite breathing on his own. They also had another child, born dead. There is nothing from the hospital or the doctor(s) overseeing the case.
We don’t have the whole story here. We don’t know what the staff did for the baby or why they did or did not do specific things.
We don’t know why their first baby was stillborn. The truth is the parents could be passing on some genetic defect that makes it impossible for their infants to survive. Just because the baby was breathing doesn’t mean he could live, especially if there was something wrong with one or multiple internal organs brain included.
It’s entirely possible the hospital decided to not treat the baby as an act of mercy. If there was no chance of him surviving due to some genetic issues and/or organ malfunction they made the right call by not basically medically torturing him during his short time on Earth.