The Lucasarts that produced all those legendary games was already long gone. Did they still even have their own internal development studio? I am not sure. They seemed to be more on the publishing side of things for the past decade.
It's just that 48/60/100 fps looks VERY ugly. Danish director Lars von Trier shot a lot of his movies at higher framerate digital video to get a more "dirty" documentary-like look. It may be more realistic but I don't want a film like The Hobbit to look "realistic". I want it to look like a fantasy and that is what 24 fps makes it look like.