Leo, was, of course, the pope of Apostolicæ Curæ, but I don't really see the Holy Father being that tactless. And yet what other explanation might there be?
On another topic, I was very pleased to notice that the altar is no longer (or at least was not on this occasion) piled high with the abbey plate: on certain state occasions it used to look like a victorian sideboard, with dishes, jugs, and probably a box or two of Namaqua wine and a bowl of fruit. I also noticed that at the very beginning, the choir sang a very peculiar responsory with lots of yelping noises instead of music. The Holy Father was quite clearly trying not to giggle.