The Pope and his office knew they were coming and he knew about their attempted slam on the sacrament. The Communion issuing priests could easily have been made aware of what troublemakers might show up with instructions on how to deal with them. Instead Biden and Pelosi were allowed to just come in and turn the service into a public mockery.
To me, it bodes very ill for this Pope's ultimate sincerity on this issue. He sure had none to begin with.
Have you seen the pictures of Joe Biden making his entrance?