I disagree with that.
No pain is preferable to pain. If the medication "only stops the pain" well that is something, and an important something.
There is nothing noble or useful about "accepting pain".
If people want to accept pain, then they should be given that option.
Denying pain medication to the dying who are suffering is NOT causeing them to ACCEPT pain,only forcing them to ENDURE it.
Mother Teresa was some kind of nut.