If these Princes of the Church were questioning The Saint, Pope John Paul II the Magnificent, or his Beloved Disciple Pope Emeritus Benedict XVI, then I would, like all True Catholics, agree they are harming the Church.  But they are questioning a Pope who has, on occasion, done and said things that he is not in line with the Saint, who was in all things, Infallible.  So it is Right and Just for them to criticize this Pope.  I hope this clarifies the standards that should be applied.