The conclusion is that Maddox Games doesn't have the manpower to make clickable cockpits standard - especially because these are more of a gimmick than a real necessity. To me there are simply way more important issues - namely a decent offline campaign and an immersive GUI. It's a purely economic question and Maddox Games has proved to be "susceptible" to wasting precious ressources on sideshows.
I haven't spent any time in civil sims. My conclusions come from several visits to flight sim conventions. Of course that may have contorted the picture.