There can be a fine line between the goal of releaving pain combined with the necessities of battle-field type triage* and the sort of thing y'all are talking about. It would, indeed, sound like that line was crossed in AT LEAST some of these cases.
The following line makes me wonder about the exact percentage that crossed that line:
In some cases the drugs may have speeded up the death process.
Revealing pain can be a GOOD thing even if that means shortening remaining life, but NOT with that as the goal, but as an unfortunate side effect.
*IE the sort of reasoning that says: We could save this one guy who is REALLY torn up, but by the time we do that these other two who are in slightly better shape will be past the point of no return, and we could save both of those two instead.
I do not pretend to be an really knowledgible on this sort of thing(that requires having actually BEEN there at least once, and possibly a lot more study than I have put into the subject), and only provide the above explaination of terms for those who are even less familiar with this subject than I am.