What about Bishop Salvador Lazo, celebrating Masses and administering Confirmations for the SSPX, in the mid-1990's?
+Lazo was ordained in 1947, so unlike Huonder, there is no question as to the validity of his priesthood.
As regards confirmation, speaking of +Lazo, +Tissier said in necessity, even a simple priest can be delegated power to confirm (so unlike any theoretical questionable confirmations Huonder might be called upon to perform, Lazo’s would have been certainly valid).
I predict Huonder doing confirmations in a year, and ordinations in two years.
These thing take time; the terrain must be prepared.
Remember what Cottier said after his conquest of Campos:
“We must be patient...what is important is that there no longer be rejection in their hearts.”
And internally, Pagliarani needs to be cautious as well. Recall De Galarreta’s advice at the 2011 meeting of superiors in Albano, that “it is neither right nor prudent to begin preparing minds for change until we ourselves are agreed.”
Is the SSPX sufficiently purified of trads to accept questionable sacraments?
It seems that, st least in Switzerland, the silence says yes.