Read it. None of those reasons has anything whatsoever to do with Catholic doctrine, and the Magisterium of the Church has decided that those reasons were inadequate to retain "universal Latin".
The "Magisterium decided" no such thing.
"The Church is without question a living organism, and as an organism in respect of the Sacred Liturgy also, she grows, matures, develops, adapts and accommodates herself to temporal needs and circumstances, provided only that the integrity of her doctrine be safeguarded. This notwithstanding, the temerity and daring of those who introduce novel liturgical practices, or call for the revival of obsolete rites out of harmony with laws and rubrics, deserve reproof. It has pained Us grievously to note, (...) that such innovations are actually being introduced, not merely in minor details but in matters of major importance as well. They are, in point of fact, those who make use of the vernacular in the celebration of the august Eucharistic Sacrifice; those who transfer certain feast days - which have been appointed and established after mature deliberation - to other dates; those finally who delete from the prayer books approved for public use the sacred texts of the Old Testament, deeming them little suited and inopportune for modern times.
The use of the Latin language, customary in a considerable portion of the Church, is a manifest and beautiful sign of unity, as well as an effective antidote for any corruption of doctrinal truth."
(Pius XII: Encyclical Mediator Dei, November 20, 1947)
" If anyone says that the Mass should be celebrated in the vernacular only, let him be Anathema . " - Council of Trent (Session XXII, Canon 9)