Thanks. This all makes sense.
I guess the bigger surprise to me is that there wasn’t anything newly extraneous or improvable as a result of the transition.
Electric guitars come to mind, they are largely the same except in two regards:
The body is much shallower. This of course is due to no longer needing a soundbox. But further, it’s because a shallow body brings the strings closer to the player and puts the arm in a more comfortable position. The large deep soundbox not only became extraneous after the transition, it was also always a bit of an unavoidable hindrance in the first place.
The body shape changed as well. This was due to aesthetic freedom as a result of not needing a soundbox.
Cameras, on the other hand, could of course change the aesthetic for fun, but I guess there is no need for in-the-moment showmanship when it comes to camerawork and camera aficionados just don’t care for flash? ;) And maybe any change would just get in the way (though arguably some guitar shapes are inconvenient as well yet nonetheless desirable to some).
In the end, I guess the physical limitations of the camera either are still present (like large telescopic lenses) or had already been condensed into a small enough size that they no longer hindered better ergonomics