Pope Pius XII is arguably one of the worst Popes in history. He was the link to Vatican II by allowing modernism to flourish and thrive via explicit Papal support of things like biblical criticism to evolution by natural sɛƖɛctıon to his extremely poor choice of cardinals. Liturgical ʀɛʋօʟutιօn was only made possible by the reforms that were put in place by the Pius XII/Bugnini changes that overhauled so many things to the point of absurdity.