@spendius,
The scene at Castel Gandolfo had special impact on me. I was part of a general audience with Pius XII in that courtyard back in the 1950's...a significant part of a very special memory even for a non-theist like me.
He is an old man willing to acknowledge his diminished capacity (which was by his nature probably stretched in the papacy)...and, unlike Dylan, I hope he does go gentle into that good night.
(ASIDE: Some of the hateful rhetoric aimed at him is, in my opinion, way, way over-the-top. No matter his failings, he is a human in his old age...and I think some of his detractors ought do a bit of reconsideration.)