It says on the eve of the feast of Christ the King. I may not be remembering correctly, but doesn't that feast on the NO calendar differ from the traditional feast day. If so, is a big event for the next day's feast going to overshadow this event done on a side altar. Well, that is to say if the event actually takes place. Someone must be testing the waters or using this as a tool of manipulation.
Maybe Bergoglio will stipulate that the mass must be said for the environment or whales or something.