An Opus Dei priest, Father Pedro Luis de Huidobro, the chaplain of the University of the Sacred Cross(Santa Croce), Rome agreed there could be persons who have not had the Gospel preached to them and who are in invincible ignorance. These persons can be saved and we do not know any such case.(I spoke with him in 2013) So they are not exceptions to extra ecclesiam nulla salus.They are not explicit exceptions.
He said all need to enter the Catholic Church for salvation in the present times and there are no known exceptions.Invincible ignorance and the baptism of desire are not exceptions to the dogma extra ecclesiam nulla salus and neither to Ad Gentes 7.
He contradicts what is being taught to young lay Catholics in theology classes in Italian conducted by the Rome Vicariate's Ecclesia Mater.He is however in agreement with Fr.Marco Hausmann FSSP and Fr.Stefano Visintin OSB.1
The Opus Dei Chaplain disagrees with other chaplains at pontificial universities in Rome.
Fr.Marco Hausmann FSSP, Fr.P. Stefano Visintin OSB say there are no exceptions to the dogma, Cardinal Valliani's Vicariate says there are
Sacredote dell'Opus Dei accetta tutto nel 2013 bisogno di convertire nella Chiesa cattolica per la salvezza a non ci sono eccezioni note