Worrying about just the right words is magicism. I am not at all ignorant. I am making fun of your way of approaching dogma. I have a similar view of efforts like Humanae Vitae which go out of their way to not change doctrine, even if called for, lest the magic of papal infallibility be visibly disturbed. The protection of Christ for the Church and its leaders is about actually changing rather than pesisting in error and calling that persistence divinely protected truth. Faith is about doing what is right and relying on God, not in scrupulous adherence to the past.