There are many many other examples where planes have LESS instruments than in this game. You cite some of the more "advanced" designs as the war began (and most of them painstakingly restored museum/warbird pieces). However many planes barely had functioning fuel indicators (it only had to tell you when it was "empty" -- other calibrations for full could be way off), things like radios being nonexistent, no artificial horzons, instruments being broken and not repaired, or left off entirely. Italian planes, Soviet planes, Japanese planes, and others as well.
EDIT: Just to drive the point home. You don't think most planes in WW2 had climb meters, G meters, gear lights (for up/down/damaged) flap indicators, 2 kinds of different compasses, eh?