Having Raffi called Picard 'JL' is like seeing a millennial-age junior staff calling their superiors their nicknames or first name, which I assume is fine in some work settings but is clearly not acceptable in organizations with strong top-down hierarchy like the military, or even at universities. In my old grad school all PhD students call their thesis advisor 'Professor Picard' or 'Dr Picard.' Once you have defended your dissertation (thereby earning the right to be called a 'Dr' yourself), you may call your advisor 'Jean-Luc,' but in all cases you never call him 'JL.'
I can't speak to the military or academia, but things are a lot more informal in the publishing industry. Not sure I have ever referred to my bosses as "Mr. Doherty" or "Ms. Dawson" or whatever, and I still find it weird to be addressed as "Mr. Cox," not this happens very much anymore.
Indeed, if anything, things seem to be trending toward ever more informality in the workplace. I routinely receive business communications from total strangers that address me by my first name and take very informal tone:
"Hi, Greg! I'm Susan Blake, an editor at Citrine Press, and I'd like to talk to you about a possible book project."
I'm just old enough to remember when this would have been considered odd.

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