After being excommunicated by the Medici Pope, Leo X, Luther condemned the papacy as an institution by calling it the AntiChrist. This is well know among Lutherans.
Are you referring to followers of Martin Luther, who said, "Be a sinner, and let your sins be strong"? I don't see much difference between Luther and Bergoglio. Do you?
After all, Bergoglio is traveling to Lund this year to celebrate the 500th yr anniversary of Luther's apostasy.