Archbishop Pozzo on Vatican II and the SSPX

You'd have to ask him.  He has treated the SSPX with much more respect than one would expect, and he hasn't moved to rescind the various faculties that he has granted them.  I have a pet theory that his "long game" is eventually to make the SSPX the exclusive custodian of the pre-Vatican II forms and rites, possibly in conjunction with "fellow travelers" such as the FSSP.

The whole point of the interview is that, according to the archbishop, some elements of Vatican II deal with pastoral practice, i.e., how to implement, present, and even interpret certain teachings, rather than doctrine which might develop but cannot change from "X is true" to "X is false".  Seen that way, then, it is not a deal-killer for this group or that, such as the SSPX, to point out that there could be some problems with that pastoral practice.  Practical recommendations as to how to engage separated Christians and non-Christians, for instance, do not rise to the level of doctrine.  This level of discourse goes all the way back to St Peter and St Paul.