The NHSTA requires a backup cam, which requires a screen. Since the screen is there they might as well make it something they can upcharge for.
I do wish they’d keep it small, nothing more than a fancy stereo. But instead it’s cheaper to bake more and more features into it instead of dedicated knobs and buttons. And it becomes a vector for subscriptions.
All of this is to say that no one asked for it, but it makes more business sense when you know that the screen is required for the backup camera.