Nope, because the document doesn’t make a mandate one way or another.
The document doesn’t make a mandate about
what?
The Council Fathers clearly do
decree that “steps should be taken so that the faithful may also be able to say or to sing together in Latin those parts of the Ordinary of the Mass which pertain to them.”
The ability to say or sing parts of the Mass in Latin was echoed in 1967’s
Eucharisticum Mysterium 19, in the context of multilingual gatherings:
19. …] Where there are many visitors or expatriates of another language, pastors should provide them with the opportunity, at least occasionally, to participate in the Mass celebrated in the way customary for them. “Nevertheless steps should be taken enabling the faithful to say or to sing together in Latin those parts of the Ordinary of the Mass belonging to them.”
So we see that even though these “many visitors or expatriates” should have the “the opportunity, at least occasionally, to participate in the Mass celebrated in the way customary for them”, the Church
still urges them, and all the faithful, to be able “to say or to sing together in Latin those parts of the Ordinary of the Mass belonging to them.”
If the Bishop of a dioceses sees the use of Latin well received and its use done properly, then that Bishop obedient to the spirit of the document will continue its use along with support for it.
However, that is not what happened in the majority of Dioceses and it wasn’t because Bishops were being disobedient to the document, but in fact, following it fully.
Let’s take a step back. SC 54.2 doesn’t even address the actual celebration of the Mass, it simply speaks about the faithful having the ability to do something! So if the bishops did not take “steps …] so that the faithful [are also] able to say or to sing together in Latin those parts of the Ordinary of the Mass which pertain to them,” then the bishops did not fully follow the Constitution.
So then, why didn’t bishops take these necessary steps, regardless of how much vernacular they wanted in the liturgy?
This call for the capacity to say or sing in Latin did not disappear after 1967.
1994, Varietates Legitimae 40: Music and singing, which express the soul of people, have pride of place in the liturgy. And so singing must be promoted, in the first place singing the liturgical text, so that the voices of the faithful may be heard in the liturgical actions themselves. {84}
{84} 84. Cf. Sacrosanctum Concilium, 118; also No. 54: While allowing that “a suitable place be allotted to the language of the country” in the chants, “steps should be taken so that
the faithful may also be able to say or sign together in Latin those parts of the ordinary of the Mass which pertain to them,” especially the Our Father, cf. Roman Missal, General Instruction, 19.
2002, General Instruction of the Roman Missal 41: Since faithful from different countries come together ever more frequently,
it is fitting that they know how to sing together at least some parts of the Ordinary of the Mass in Latin, especially the Creed and the Lord’s Prayer, set to the simpler melodies.