I've listened to about 30 minutes of this, and I find it unpersuasive.
He makes up this distinction between jurisdiction and the "effects of jurisdiction". Once a pope dies, these effects of jurisdiction still have to come from somewhere, but he doesn't explain where they come from in that case.
Ontologically, the effects of the jurisdiction that remain after formal jurisdiction has ceased at the death of a pope can only be material.
He's basically trying to apply some kind of "collegiality" principle that the bishops directly have jurisdiction from God and not through the pope, and that would be a grave error.