Remember- this was an 'assisted care facility'
Essentially a very expensive apartment with a common eating area.
The staff is mainly CNA's, with a nurse as a supervisor.
Legally, an assisted care facility is very different from a nursing home, since no health care is provided on site, only meals, laundry and distribution of prescribed medicine.
My mother and my wife (NOT the same person, smartasses) both worked at Fraser Villa assisted care. Under no circumstances were they to perform any procedures, or move the person in case of a fall unless leaving them posed an imminent danger (i.e. a fall in the parking lot).
While the nurse in question would be qualified to perform CPR, she would definitely lose her job if she did so. This would also go on her employment record and she would have a hard time finding a new job. Putting your employer in legal jeopardy does not look good.
If you want to be angry, be angry with the lawyers that have fukked up the world so it's everyone for themselves.