The method of getting it into her is extraordinary since it wasn't even an option until about 20 years ago. So we must have all beens screwed for 99.9999% of our existence on Earth.
Feeding tubes have been around a lot longer than 20 years.
http://www.sptimes.com/2005/03/29/Tampabay/Feeding_tubes_snake_t.shtml
Perhaps you mean antibiotics which have only been around for 70 years or so. I guess by your logic, someone who takes penicillin for bronchitis is being kept alive through "extraordinary" means.
Of course it was an option. The PEG tube was a 1979 improvement in tube feeding, but the technique goes back more than two centuries.