She said that at Communion the Host was dipped into the cup. I thought that was not allowed. Do you know?
This is known as intinction. When I was a child, it was the norm for Easter and other special occasions for the priest to perform the intinction. SELF-intinction (dipping your own Host into the Precious Blood) is never permitted. I am not sure about intinction performed by the priest.
Finally, the pope can do as he wishes when it comes to most liturgical norms and laws (not moral laws). He is the absolute supreme authority for all three “branches” of church governance.
Intinction is done by the priest only. Usually he has a server there with a cup, and then the server follows the cup to the communicant’s mouth so that none of the Prcious Blood is spilled.