Notice how the conclusion does not even begin to follow from the premise. Because the Constitution does not circumscribe the authority of the Presiding Bishop does not mean either (a) the authority must be unlimited; or (b) that General Convention has the power to define the authority of that office — or to add to, or detract from, its authority on its own. And since duty flows from (and is defined by) authority, having the power to prescribe duties appropriate to the authority that has been given is not the same as having the power to create new authority by creating new “duties.”
Can anyone today seriously argue that the office of the Presiding Bishop of ECUSA is without any limits on its authority? The Title IV Task Force II seems to think so — and they defend their extension, sub rosa, of metropolitical authority to that office on the ostensible ground that such authority is “nothing new,” because General Convention “has never considered that office to be limited as the Runyan & McCall paper states.”
Only persons who were determined to ignore the evolutionary history of the office of Presiding Bishop could make such an outlandish statement….