@inthehands I've never thought of it that way, but you're right. Ostensibly clean, but they hide the non intuitive complexity. Plus, for the sake of appearing to be new (and sell devices), I think there's impetus to keep fiddling with it.
After I replied earlier, I was reminded of how consistent the Xbox user interface has been (after they shed the silly Windows 8 look). Probably for close to a decade now. I assume the PlayStation is similar.