"That no man putteth a piece from a new garment upon an old garment: otherwise he both rendeth the new, and the piece taken from the new agreeth not with the old. And no man putteth new wine into old bottles, and it will be spilled, and the bottles will be lost. But new wine must be put into new bottles, and both are preserved. And no man drinking old, hath presently a mind to new: for he saith, The old is better." - St. Luke 5:36-39

Why doesn't the Pope pray twenty decades of the Rosary? i.e., five decades of each of the mysteries (Joyful, Sorrowful, Luminous, and Glorious.) 5 x 4 = 20

Does this mean that the Pope prefers the Rosary without the Luminous mystery which has fifteen decades?

Specifically, Gramsci called for Marxists to spread their ideology in a gradual, incremental, stealth manner, by infiltrating all existing societal institutions and embedding it, largely without being noticed, in the popular mind. - See more at: theatheistconservative.com/tag/antonio-gramsci
I agree with Michael Voris' outlook on the future of the Church. His analysis is real and not pretty at all. Unfortunately Antonio Gramsci's (1891-1937) dream has come true in America. He called for Marxists to spread their ideology in a gradual, incremental, steal manner, by infiltrating all existing social institutions (including the churches!) and embedding it, largely without being noticed, in the popular mind. Yes, the liberals have achieved their goals brilliantly without average people noticing it. May God help us!

Specifically, Gramsci called for Marxists to spread their ideology in a gradual, incremental, stealth manner, by infiltrating all existing societal institutions and embedding it, largely without being noticed, in the popular mind. - See more at: theatheistconservative.com/tag/antonio-gramsci

Paragraph 112 of "Directory for the Application of Principles and Norms and Ecumenism" states:
112 Although a church building is a place in which a community is normally accustomed to celebrating its own liturgy, the common services mentioned above may be celebrated in the church of one or other of the communities concerned, if that is acceptable to all the participants. Whatever place is used should be agreeable to all, be capable of being properly prepared and be conducive to devotion.
This document was blessed by Pope John Paul II. It's amazing the problems come from the top. I am sticking to my faith in God, not other clergy's faith. Long live the Catholic Tradition!

This problem is totally legal according to the Vatican Document "Directory for the Application of Principles and Norms on Ecumenism." I encourage everyone to google and read it. In this document, it sates that the Catholic church can loan it's facility to non-Catholics for ecumenical reason. My question is what is the Pope going to do about it? These days the problems always come from the top, not the bottom.