This is a ridiculous statement for an article in a magazine that once purported to be Catholic. The Roman Catholic Church includes many ancient eastern rites in addition to the largest group, the Roman Rite. The bishops of eastern rites are the full equal in authority to the bishops from the Roman Rite.
Archbishop Bustros, speaking from Rome in his capacity as authorized spokesman for the Synod, described the meaning of the official synod conclusions. No other bishops of the synod or ranking Vatican officials have contradicted +Bustros, so it is inaccurate to say he was not speaking in official capacity for the Catholic Church.
Catholic apologists play a game of ‘plausible deniability’ whereby Bishops’ activism on behalf of evil is never the fault of the Church itself. You’d think all those Churchmen were Protestant television prophets with ‘no controlling authority’!
That's one of the main features of having a Pope.
He is not an official spokesman for the Catholic Church. He is an official spokesman for his diocese.
No Catholic outside of his diocese has to listen to a single thing he has to say.