On top of that, until another couple generations come and go, tech will still be something that, for the vast majority of people with large amounts of money, struggle with. People 40+ aren't going to instinctively know to bring up this "control center" thingy to get to their settings. A nice icon on the homepage allows them to access it easily.
When the people currently in their 30's are in their 50's we can have a lot more of those types of designs. But unfortunately for the next 20 years we are stuck catering to the tech deficient populous. And sure, you can always market for the younger crowd. Hell a smartphone to begin with is doing that, but you still need to make it accessible to the broader scope of people, especially when the money typically resides with people 40+
By the time there are nothing but smartphones in another few years and even some of the older people are used to using them, could you get rid of a feature like the Settings icon on the home screen? Sure. Could you do it now and just deal with the confusion? Sure. But I believe that Apple STILL considers the user experience a top priority and therefore will always be on the "easy" side of the coin and not the "super cool" or "super functional" side of the coin. I can understand their reasons, but being someone who "gets" tech and was raised on it, I just wish it didn't always have to be that way.