Father,
I am not a theologian and I must stipulate that my response is nothing more than my personal opinion. The Council of Trent infallibly defined, for Catholics, that the words of institution make present the body and blood of Christ by the power of the Holy Spirit. This cannot be denied and it is clear in both our theology and our liturgy that the moment of consecration happens at this particular moment in the Latin rites. That being said, the Church has never formally defined that it is impossible for the consecration to happen at a different moment and it would appear that in the case of the East Syriac liturgy Rome is open to that possibility. I think it simply illustrates my belief that Catholic theology is more mystical and less bound to scholastic definitions than its critics claim. As I’ve said before, there is more than one school of theology within the Latin Church and always has been. Often the Truth is more nuanced than we would sometimes like to think. Protestants think in terms of simple black and white yes or no…Catholics and Orthodox Christians recognize that God’s mysteries are infinitely deep and rich. Is salvation by faith or by works? Protestants answer faith. Catholics, and I think the Orthodox, answer both. Did Christ physically leave this earth? Protestants answer yes. Catholics answer yes as well but also maintain that He is physically present on every altar.
EDIT: I should add that if you read the decision from Rome, it does not state that the words of institution are optional or unnecessary, but rules that in this case they are implicitly found in such a way that the consecration still occurs - but who knows at which moment?
Take the sacrament of penance. In the Latin rites, the words “ego te absolvo” (I absolve you) are necessary for a valid absolution to occur. These words aren’t found in most of the Eastern / Oriental traditions but their absolutions are still considered valid. I think we need to consider the possibility that the Holy Spirit works through the different traditions of the West and East. The means in which a sacrament occurs may vary.