From the tenor of the article, one gets the idea that priests may not have to go through the archbishop. THat will literally put the two side by side. It would be interesting to see what happens.
Something's up. These rumors didn't start themselves.
The priests may not "need permission," but a bishop has every right to reassign a priest for whatever reason he sees fit.
The first priest who says a Latin mass in Los Angeles is going to find himself assigned to a "parish" in South Central LA with no church and no parishioners.