At https://lists.launchpad.net/kicad-developers/msg37201.html Seth posted a video (https://www.youtube.com/watch?v=qpw9dKxL2Ho&feature=youtu.be&a=) of an experienced Altium guy using KiCad 5.0. The video is generally painful and annoying to watch, but if I saw something that seemed worthy and I couldn't find it in the bugtracker already I thought I should add a new bug for it.
About 1:40 into the video Dave is looking to generate Gerber outputs. File > Fabrication Outputs would seem to be the most logical place, but that's not where one goes to make Gerbers.
The Plot dialog can do a lot more than just Gerbers, but for the uninitiated it's unclear where exactly to go and Gerbers, being a major output of ECAD tools, would seem worthy of it's own menu entry so one can't admonish Dave for expecting to see "gerber" or "artwork" or some other term in the menu.
One option would be to add File > Fabrication Outputs > Gerber and then redirect that to the existing Plot dialog already set up in Gerber mode. Then the menus include Gerber output along with the other fab stuff but the Plot dialog can remain on it's own for plotting to other formats as well. Just a thought.
That's a good catch. I'm glad you were able to sort through the excess to find a useful item!