The point was that pain medicine needs to find drugs as, or more effective than Morphine for pain, without the psychological effects of Morphine. Romantic painful, clear-minded, drug-free deaths aren't the goal; pain free, clear-minded drugged deaths are medical fiction for many on account of the very limited arsenal of pain medications. Nevertheless, this goal should pursued with more resources.
Perhaps neurochemistry excludes the possibility of pain blocking, without detrimental psychological effects, but perhaps it doesn't... ?