Supplied jurisdiction and supplied authority are not exactly the same. They don't sound the same to me.
It seems that they are actually tending towards schism and establishing a kind of parallell hierarchy, not in line with the Sedevacante state, nor with the R&R principles.
A most surprising and strange development. It seems that Bp. Williamson's presence guaranteed a certain chaos, in a good sense. They were embarassed to go against his "herding cats principle". Not that he is gone, they are trying to herd cats indeed, and it is becoming an even greater mess.