Totally agree. A backup camera actually has utility. I like the blind spot warning system quite a bit too.
Most everything else is just technological kitsch. This isn't that new though.
Stereo systems have had equalizers forever even though almost everyone is just going to make already mastered audio sound worse by filtering it. That is not the point really of an equalizer. It is just to have a series of useless controls that will never be used but looks cool when you first see it. Pure technological kitsch.
I know that I, personally, love having a backup camera, but don't need or a screen for anything else, and would prefer physical controls for most things. Unfortunately that's not an option in most vehicles, so I am kind of coming to the conclusion that my next car will be an older model that's "dumb", since this is an overall better experience.
I don't think you could use the number of sales of cars with this kind of UI as evidence that people like it, since (the article mentions this) car manufacturers want to put it everywhere, regardless of popularity. It's got so many benefits from their side. It's not that I think they forced it on people, I think it was originally a cool novelty that people were excited about. But, after the novelty wore off, and a lot of people stopped wanting it in their cars, the industry had so fully committed to it that people just don't have the option to do without it these days.