Well that's exactly what happened during the scamdemic. The FSSP church I attended shut down all all Masses and sacraments for a lengthy period. The SSPX never did.
Why should I go back?
The SSPX approach was inconsistent. Some of their biggest churches including their flagship location in St. Marys, Kansas were closed.
Thats really the problem with the SSPX. As a schismatic organization is has a limited ability to enforce a coherent approach to anything.