Here is a reply I received from a senior priest of the SSPX, of the 'conservative wing', to whom I expressed my concerns at the time when Bishop Huonder came to live under the roof of the SSPX with the approval of Pope Francis, without any repudiation of the Council or the Conciliar Church, straight from altar girls, as it were, to Tradition:
Bishop Huonder states that his staying with the Society of St. Pius X is only to devote himself to prayer and the traditional Latin Mass. If this is true, then there is no real danger to us. He will obviously not be administering sacraments for us and has been told that if he lives with us, he cannot do so for the Fraternity of St. Peter either. We shall see. I think that Fr. Rousseau is overreacting, and that there is another real reason for his departure. Fr. De Jorna quotes him because the accusation is so obviously over-exaggerated...
Fr Pagliarani has insisted on our opposition to the errors of Vatican II, and the idea of a canonical arrangement without resolution of the doctrinal issues has now been abandoned, as it should have been all along. So we are practically back to the chapter of 2006 statement.
Is there any point getting back in touch with this priest and reminding him of what he said?
Go for it, and maybe tell him also of other cases recently brought to light again in recent threads of trad priests and bishops saying one thing with regards to an accord and those who are trying to obtain one, then years later doing a 180.