And yet she was in pain. I understand your distress and I seriously wonder whether this was a kind of palliative-care-malpractice on the part of the hospice.
It was at leat 25 years ago that Dr. Jose Espinosa, an expert in geriatric and terminal cancer care, testified that in all his years of practice " --- but he had seen "intractable doctors and nurses."
And if this was true 25 years ago, I daresay it's even more true now: acupuncture, narcotics, and other pain relief exists which can truly eliminate severe pain in terminal patients. (I say "in terminal patients" because some of these measures would cause side-effects which would not be acceptable for non-terminal patients --- for instance, a pain med that destroys liver function in 8 months --- whereas that is perfectly appropriate for a person who has not that long to live.)
I have heard that some doctors hesitate to- give "cocktails" of narcotic meds at effective doses because they are afraid of legal scrutiny of their use of controlled substances.
In any case, it makes me angry that there are hospices which lag behind in effective comfort care. Here's a good thing to read: the article on the left side of the page about better approaches to end-of-life care.