Are you suggesting Church does not have “perfect communion” with itself? If, say, Petrine successor became Eastern Bishop and told me to abandon rosary, I would obey. Christ was faithful and obeyed Father even unto death. We are to imitate Christ. If I obey a Pope, Head of Church and Vicar of Christ, it is not a sin. If Pope however, makes me obey unreasonable command, sin is his. What comes from within defiles us, not what comes from outside. As member of the Church my role is to obey authority established by God above me and search for him. As authority established above me, bishops, Patriarchs and the Pope have duty to lead me to God. If they neglect that duty, they will be judged based on this. If I neglect my duty, I will be judged based on it.
I am not saying traditions should cease and be neglected, nor that uniformity means unity. On the contrary, I attend Novus Ordo and Byzantine Liturgy a lot, and I want to check out Tridentine Mass more. I do not think uniformity needs to exist. However, if diversity divides us and makes Church have “not perfect communion”, I think it is not good. We can be diverse in our approaches, but not in things we approach. We can be diverse in way we express things, but not in what we express.
To have or to not have idea about spiritual tradition is one’s own choice- however sad it might be. Fact Eastern Catholic also borrows from Latin traditions is not bad at all. We are united Church, we are not uniform therefore as member of this Church I do not have to be uniform either. Church is full of traditions, and it is very rich with number of traditions it has. Would it not be wrong to wrong to force someone neglect riches of other traditions (of one, universal Church of Christ)? I draw my spiritual strength from all traditions of Church I know, and I plan to expand my knowledge about those. Latinization is wrong when forced, I agree. But to shame saying rosary before Byzantine Divine Liturgy would be wrong too. Churches should return to their traditions and roots, to never neglect their tradition so that Universal Church can benefit from it and so can ALL members. We all share.
And I noticed you have not addressed my point about you uniting Eastern Churches (Orthodox and Catholic) and splitting Catholic Church in two, when opposite is true. Whatever would happen, I am first Catholic then I am Latin. Eastern Catholics in my country share this approach and (other than reciting Filioque because it does NOT imply heresy in our language) do not seem latinized to me. On the contrary, they seem to be holding heavily onto their traditions and being proud of being Eastern- but even more proud of being Catholic.
Pope and Ecumenical Councils (pre or post schism) have guarantee of Holy Spirit to be infallible. Therefore, to deny they hold authority in Eastern things would be to deny authority of Holy Spirit. This is a dangerous ground to walk on.