It may be crowded at St. Vincents during the Triduum next year:
Art. 2. In Masses celebrated without the people, each Catholic priest of the Latin rite, whether secular or regular, may use the Roman Missal published by Bl. Pope John XXIII in 1962, or the Roman Missal promulgated by Pope Paul VI in 1970, and may do so on any day with the exception of the Easter Triduum. For such celebrations, with either one Missal or the other, the priest has no need for permission from the Apostolic See or from his Ordinary. [emphasis added].
As I feared, this motu proprio restores nothing to us, the laity, nothing, either in principle or in practice. And in practice, it actually takes away from the clerics: they can no longer celebrate the holiest liturgies of the year in the old rite, and those haggard diocesan clerics, ordinarily limited to one Mass on a feria, in practice won't have the ability to say the old Mass as they want to. The reprehensible modernist bishops have one another battle. You can just hear Cardinal Murphy Cormac O'Connor gloating about it, happy to avoid any prayers that would lead infidels, heretics and schismatics to the one true faith.
So all of you in Springfield, Missouri, and other places subject to oppressive modernist regimes, you won't be assisting at an authorized traditional Mass anytime soon.