Just three days before the installation ceremony, on Sunday, December 14th Fr. Vassal, for the occasion of the appointment of this new bishop of Boise, gave a sermon at Immaculate Conception Church about the duties and authority of the bishop of a diocese. He also discussed the relations of the SSPX to diocesan bishops and his relationship with this ordinary. He said that he's had no contact with him and has no intention to contact him, unless instructed to by his superior. It seemed that he was trying to give the impression of them (SSPX, ICC) keeping a safe distance from the bishop, but in the same sermon, indirectly, allowing that there may be some upcoming communication with them. Funny thing, he didn't mention that he was sending one of his charges to said installation ceremony.
I just saw that Machabees on a Cor-Mariae post says "Additionally as reported, the SSPX Post Falls Prior, Fr. Vassal, is to meet with the new Bishop Christensen at the local Post Falls FSSP chapel. Collaborated with one of Fr. Vassal's recent sermons was given in dedication to the support of the new Bishop of Boise." Although I'm not sure what the "Collaborated with one of Fr. Vassal's recent sermons" part means, though (did she mean corroborated?). "The local Post Falls FSSP" chapel would be St. Joan of Arc in Coeur d'Alene, I'm guessing.