That is no more an argument against using the word Gehenna (as Jesus did) than me saying “So, those who die in their sins in Asia will be thrown into the Norse afterlife?” since that is where the word Hell comes from. It’s an analogy, as I already said, to draw a particular image of what happens.
If the official Bible of the Catholic church, the Latin Vulgate (all of them whether Stuttgart scholarly reconstruction, Clementine, or Nova) uses the word Gehenna I don’t understand how it would be wrong for the English translation to use it as well.
Gehenna is not defined in the Catechism. Hell is. Gehenna is not taught as a final repository for the damned - hell is. Gehenna is a metaphor. Hell is reality. In the Catechism, the name “Gehenna” appears only within the larger teaching on the subject of hell.
As I sse it, the faithful of all all ages are more poorly served should the Church rely for all time solely on the temporal metaphor of a physical location, known primarily to those in and around Jerusalem 2,000 years ago. The Church has deemed that the geographical name of Gehenna is not sufficient
by itself to convey the eternal state of despair, torment and separation from God.
The Catechism does not have a section, not even a re-direct, naming Gehenna. It does, however, have several paragraphs and a defined teaching on the eternal state known as hell. The four “last things” in Church teaching are: death, judgment, heaven and hell. Why not call hell what it is? Particularly since the Church has taken great pains to explain it?
Practically speaking, has anyone ever told you to “go to Gehenna”?
The OP may not concur, but I believe that he is pointing out the glaring omission of the word hell (see Catechism sections 1033-1037) inasmuch as that omission coincides with various other apparent negligences of the past four to five decades. The NAB, while many seem content with it, is roundly criticized on numerous points. Perceived deficiencies in translation, as well as introductions and footnoting are well known and oft noted.
My bottom line: The NAB/RE is yet another fruit of the “spirit of Vatican II”, which in retrospect, appears to be a worldly spirit.