You realize, I hope, that the the "title" that appears in your edition of the KJV is something added by the editor and publisher, and is not a part of God's word? It was more a letter of advisement than a binding, official promulgation. But if you insist on regarding it as such, perhaps we should note that they did not lay upon those Gentile believers the burden of following a pope, the burden of making auricular confession to a priest, or the burden of belonging to the Roman church. Infallible means "incapable of error." Do you really believe that any human being (besides Jesus) is incapable of error? Do you really believe that every single time an apostle opened his mouth to speak about the things of God, every word he spoke was completely free of error? Wow. I don't have that much faith in mankind. Nor do I believe that God put the apostles on 'puppet strings' to control every word that came out of their mouths, but apparently you do!