Why did Benedict XVI purposefully choose "Pope Emeritus" instead of "Bishop Emeritus of Rome" & Claim this title "Corresponds to the Reality"?
Antonio Socci in his book says that an authoritative canonist told
Benedict XVI that his new title "ought" to be "bishop emeritus of Rome"
since he would no longer be pope.
But, Benedict had it "announced" that his title would be "pope emeritus."
After the resignation, which later in the book Socci says is "at least... absolutely doubtful," Benedict's secretary Georg Ganswein said:
"He [Benedict] believes that this title corresponds to the reality."
Socci explains the "doubtful resignation" problem if Benedict thinks this "corresponds to the reality":
"The pope emeritus is logically still the pope, just as a bishop emeritus is still a bishop."
(The Secret of Benedict XVI, Pages 64-73)