You are glossing over the truth, just as you presented the changes the Pope is making to doctrine as having been there along and that everyone in the Church is on the same page with it. Whether or not you know truth would be an excellent, but pointless, question. You don't think if the Catholic Church could snap its fingers and every single Bible outside of its direct control would disappear it would do so?
Not any longer, no. Remember, at the time the Church and government were one, and the Church had the responsibility of making sure the people were taught correctly. They took this responsibility seriously.
We often forget how much the world has changed between those times and our times--and we make judgments on how things are today as opposed to how they were then.
When TV first appeared, one of the first things that happened was a panel of censors were installed. That's pretty much gone by the wayside as well. There is too much media out there, and beyond the control or responsibility of any one group.
The Church, just as it accepted the responsibility that was part of the world view then, accepts the realities of the today and works within the present scope. From my own observations, I think the Church prefers the world today over the world then--but that, of course, is a single opinion.