Oh well… first things first, Latinization is clearly bad and wrong… however…
If the faithful did already accept Rosary and pray it, if Priests see it fit to learn Western theology or anything like that… it isn’t necessarily latinization by itself… I will try to explain how I mean this.
Early Church, pre-schism Church, to some extent had more rites. Let’s say world was mostly split between Greeks and Latins, but Copts existed as well… so did Armenians and so did Maronites. During these times, adopting each other’s practice was not viewed as wrong at all. In the end, Church was Church. Put in today’s terms, if Rosary was beneficial to Latins, Greeks would want to benefit from that too. If stricter fasting worked for Greeks, Latin Bishops enforcing it would not be viewed as wrong. Church was not uniform even between the Rites and syncretism of Rites was far too common. It was not viewed as a threat at all and not as taking each other’s identity apart… but it was not forced. First time someone ever tried to force discipline of one rite on other Rites universally was when Greeks called Council of Trullo. They wanted to make the Church uniform and obviously that was not a good thing.
Now taken from that context, if someone forces Latinization, it is wrong… to the same extent Easternization (or what’s the word) is. Forcing Epiclesis unto Latin Rite or forcing leavened bread unto Latin Rite would be straight up wrong. There is only one thing Church can not compromise at, and that is dogmatics. Rites all share same divine Truth, same dogma. If it is true there is One Triune God in Latin Church, it is equally true in Greek Church. If it is true that Pope has infallibility it is true in all rites, same with Our Lady being unstained by sin, same with Final Purification of souls. Simply speaking one can not deny truth just because his Rite expresses it differently. This part is problematic with those who have left the Church and rejoined, as too often they look at their separated brethren and take dogmas and theological approaches from them. Some Eastern Catholics would now deny “through the Son” theology which was, until Patriarch Photius, very integral part of Eastern theology. Such things happen because one wants to look more Eastern or more Latin (as with some Latins denying Eastern practices as well, sadly) or more than looking Catholic, looking Christian. Expressions may differ but essence remains. Otherwise one could run from dogmas to another Rite. It would create situations akin to where sedevacantists run to Eastern Catholic Churches to escape Novus Ordo but end up disregarding Eastern Christianity as well. How much more important is to prevent escaping from dogmas than escaping from liturgy!