Basically what is being referred to here is the Roman Catholic Churches pathetic capitulation to Communism after the sweeping and shocking reforms and excesses wrought by Vatican II. Up until Vatican II the RCs were outspoken enemies of Communism. This is not to say that they became buddies after Vatican II but we can clearly see many instances after Vatican II, such as the French Seminary in Rome hanging a North Vietnamese flag, among other things. At times it was reminiscent of the French Revolution with priests turning their backs on their faith and joining in the destruction.
We can see just how much the RC church/heresy suffered after Vatican II with large numbers of people no longer attending the Mass. My father went through a crisis of faith over this. He went from being a devout Roman Catholic who knew his Latin and his Mass and going to fight Atheist Communism in Vietnam to coming home after Vatican II and finding his home church scandalizing the Mass using guitars and having women hand out communion!
Now I agree with you all I would have no one be in heresy but I would rather a man love God and be ignorant of his heresy than doubt God and fall into immorality and open hostility to His Lord and His Mother.
I think all the PM was stating was the obvious. If the Russian Church did to the Liturgy what Vatican II did to the Mass would so many have died for the Church? Most would have lost faith due to such a Reform.
Sorry but coming from a serious Latin Mass Roman Catholic background this issue always pricks my ears and the historical parallels are very instructive for the present and possible future of the Church and society.