Is that why the bar light isn't modeled? I actually have no idea where it is; I went aft and poked around a bit, and the lights above the bar do work with the attached push button, so I'm assuming something would fold out and that contains the bar light?
I did think it was odd that an aircraft released after the Dukes and their lovely interactive cabin didn't go as far. The explanation makes sense, and I am a cockpit flier only, so I would have gone through the cabin once to click everything and marvel at it and then probably never touched it again, so I'm not terribly crestfallen over it.
I would love to see it in a future update, but I understand that time and effort don't grow on trees, and that such an ask would fall pretty much to the bottom of any totem pole.