Huh?
We pick and choose what to criticize, what to affirm, among Papal teachings, but we are not Cafeteria Catholics? How do you reconcile your first paragraph with the last?
Dei Verbum says “the Church, in her teaching, life and worship, perpetuates and hands on to all generations all that she herself is, all that she believes.” That includes what the Pope says today as well as what has been said before. Criticizing multi religious meetings in Assissi is possible only in the Cafeteria.