He may have taken the Vatican ruling to heart that if there is no Mass in your diocese celebrated according to the GIRM, then you are permitted to attend a Mass celebrated according to the rubrics of the 1962 Missal.
He may be expressing a frustration with our poorly-administered Church and the lack of disciplinary mettle of the Vatican. It does not necessarily mean he has separated himself from allegiance to the Holy See.
This is the first I've heard of this. Can you elaborate?
And who is to certify the the available masses in a given diocese are not GIRM-compliant? Can't imagine any local ordinary signing off on that.