Fr. Daniel Cooper, an SSPX priest in the U. S. district, wrote in a July 2015 letter to SSPX faithful:

A concerned parishioner said to me, “What’s wrong with the priests of the SSPX? They never speak against Vatican II. Now all we get is the gospel.” This is so typical. She is complaining because the priests of the SSPX are doing their duty, spreading the message of the gospel. But she wants them to be attacking Vatican II from the pulpit. Very rarely is there a good reason to do this.

Page 2; emphasis added.

By avoiding mention of the principal errors of our time, Fr. Cooper fits in well with the SSPX’s new direction and will fit in well when the SSPX becomes a “recognized” (indult) group.