Since Allah called Muhammad a "beautiful pattern of conduct for those who want to please" him, the best that you can hope for from one of his devotees is apostasy, heresy, or ignorance. What else can a reasonable person expect?
Here, once again, is our good friend Ibn Kathir exposing Muslim deceit -- both the individual's practice of it in denying taqiyya and the "divine" mandate for such deception -- in his explanation of a chunk of Sura 3:
"(unless you indeed fear a danger from them) meaning, except those believers who in some areas or times fear for their safety from the disbelievers. In this case, such believers are allowed to show friendship to the disbelievers outwardly, but never inwardly. For instance, Al-Bukhari recorded that Abu Ad-Darda' said, 'We smile in the face of some people although our hearts curse them.'' Al-Bukhari said that Al-Hasan said, 'The Tuqyah [taqiyya] is allowed until the Day of Resurrection.''"