Allegedly, JXXIII cried out on his deathbed to close the Council, which would be one of those things which would be nice if true, but also beside the point. He should not have added St Joseph's name to the unchanging canon, to make another obvious point. Making a change like that showed an experimenter wasn't pushing against a locked door. I think by the time of his death the radical, wrecking, Modernist, Indifferentist element was in the driving seat.