Sounds like the source of the problem is referenced here:
The patient can be discharged when the clinicians have determined that any further care can be provided as an outpatient, “provided the individual is given a plan for appropriate follow-up care as part of the discharge instructions,” the federal agency said in an operations manual.
If she’s in a state where she might at any point fatally worsen and she has no chance of non-emergency care, this sounds a lot more reasonable.