"There was no document that required the destruction of existing altars. Vatican II did not required it. There was experimentation with it during the Liturgical Movement, often by those with protestantizing tendencies. The scholarship in those years which was advanced in support of Mass "facing the people" as an "ancient" practice, was later repudiated by the authors (e.g., Bouyer, Jungmann). The fact that they changed their minds was never given as much press as the errors they had committed earlier. This was a desideratum of liberals from long before the Council..."