My issue is the lack of proof for jurisdiction being supplied to trad priests objectively. I am unsure how it'd work with my current situation though since I believe it is possible the SSPX have delegated jurisdiction from Francis since I am unsure about SVism.
Try to remember that the end reason or main reason for the law that governs priestly faculties / jurisdiction is for the good of the faith, for the good of souls and for our salvation, and why in Her wisdom, Holy Mother the Church allows for "supplied jurisdiction" in emergencies.
We've been in an emergency for 60 years. The emergency is spiritual and it is worldwide, it is a crisis or an emergency of the faith, not of the body.
We must go to priests we know are valid and orthodox in the Catholic faith who can absolve our sins. If you cannot find one who is both, then find one you know is valid and ignore his unorthodox council in the confessional. Due to the crisis, the Church supplies his jurisdiction even when the bishop and pope forbid it, or just won't grant it to them, so do not worry about that.
In a nutshell, the laws were established to insure that the faithful were not fooled by fake, censured, or otherwise heretical priests ("false prophets") preaching false doctrines while impersonating or masquerading as Catholic priests. In this law the faithful could be confident that the priests were authentic because they were sent from their bishops, who was himself appointed to rule the diocese by the pope.
The situation in the Church since V2 has the faithful conditioned to wrongfully believe they should avoid trad priests for the Mass and sacraments because trad priests are refused jurisdiction, and on that account do not have the faculties to do their priestly duties, this is wrong. The truth is that we should thank God for providing us with the few faithful priests we have, and for supplied jurisdiction - which is a part of the law.