Because it proves that a bishop is really powerless without the Pope.
Really? Explain then why the CC considers the Orthodox Churches to have true bishops and calls them “Churches.” These well-known facts (among many others) proves your opinion is pure fantasy.
They are nothing but the extention of the Pope in a diocese. As the title of that section says, “The Pope’s Power Derived Immediately From Christ; That Of The Bishops, Through The Mediation Of The Pope.”
Just another example of how you manage to impose your own opinions on everything that you read to create false caricatures. The title explicitly states that the power of the bishop is MEDIATED through the Pope,
NOT that the Pope is the SOURCE of it. So if the Pope is not the source, how do you propose, as you stated above, that a bishop is really powerless without the Pope?
So the Pope is not a rank of bishop, but that of something above a bishop.

BISHOP of Rome.
The Pope is a bishop with more responsibilities, and greater consequent basic prerogatives in order to fulfill those responsibilities. These responsibilites and consequent basic prerogatives are divinely appointed. The prerogatives for the sake of those responsibilities have undergone development throughout the ages, and the way they have developed is an issue to non-Catholics, many non-Latin Catholics, and even some Latin Catholics.
Patriachs, metropolitans and other head bishops are also bishops with more responsibilites than other bishops, and greater consequent basic prerogatives in order to fulfill those responsibilities. The difference between the primacy of the Pope and the primacy of other head bishops is that the Pope’s was divinely instituted by Christ, while the primacy of other head bishops was ecclesiastically instituted by the Church.
And that bishops have no authority by their own other than that the Pope gives them.
You’ve given nothing to back this up except your opinion.
So really, the Pope si the Vicar of Christ and the Bishops are just vicars of the Pope.
The old Catholic Encyclopedia - “
The pope is bound to establish bishops who enjoy genuine ordinary power in the Church (potestas ordinaria), and who are not merely his delegates or vicars.”
Second Vatican Council - “
Bishops, as vicars and ambassadors of Christ, govern the particular churches entrusted to them by their counsel, exhortations, example, and even by their authority and sacred power…The pastoral office or the habitual and daily care of their sheep is entrusted to them completely; nor are they to be regarded as vicars of the Roman Pontiffs, for they exercise an authority that is proper to them, and are quite correctly called “prelates,” heads of the people whom they govern.”
Stop investing your time reading what non-Catholics say
about the Catholic Church. It is not spiritually edifying to listen to lies.
Also if you read more on the page, it says “Their jurisdiction, although fully subordinated to that of the Sovereign Pontiff…”. It says plainly that they are not even the prime head of their jurisdiction as they are subject to the Pope.
We know that mayors and senators are subordinate to the President. The President of the United States has a plenary authority that other politicians do not possess. I guess in your own mind, mayors and senators and other politicians do not have real authority, just because their authority is subordinate to the President’s. You are obviously imposing an Absolutist Petrine (mis)interpretation on that statement that it does not intend (nor in fact does the word “subordinated” in common parlance indicate a total lack of authority).
Every one of your responses has been refuted. Now, I ask again, if you cannot provide any valid reasons for your claim that each diocese has two bishops, have the decency to retract it.
Btw, was the document you quoted from EWTN a magisterial document? The link did not say. You boasted by your quotation of it that "
this is what the Catholic Church teaches,’ but there was no indication in the document that it was from the Magisterium. It reads more like an opinion piece. Can you please provide the source of the document?
Blessings,
Marduk