Many people today like to justify disagreement with the Pope or other legitimate Church authority by appealing to the fact that St. Catherine, in her time, challenged the Pope to return to Rome from the decades-old “exile” in Avignon, France; but they (conveniently?) forget that St. Catherine was much holier than they, that she was entirely motivated by charity, and that she also spoke of the Pope as the “Sweet Christ on Earth”. - Fr. Jerabek's Blog
I might add, she also kept the communications private and did not publish them or spread discontent.