The question is, why not?
They are out of protocol because it's too risky. Remember, once you
decide to save a person, you have a duty of care.
If that person dies while you are treating him and using out of
protocol methods, you are liable.
But if the saving is successful but leaves disastrous results, what
will happen? Humans are fast at pointing fingers at others, but
never themselves. If they don't attempt to save, families will be
angered. If they attempt to save but resulted in disaster, they too
will be angry.
Also, whether saving a person will work, will still depend on his
will to live. Lots of methods that are guaranteed to work but risky
nearly requires a person's will to be there. If the will isn't
there, it's as good as nothing.
