I'm going to jump in and say I mostly agree.

It's no big issue for me one way or another to have a car with the technology from factory, and I do like having the wireless connectivity - music from the phone etc is really nice - but visual maps and visual UI add no value to me personally.

The setup I have for my project car is ideal for me - a small bluetooth receiving amplifier that feeds the speakers directly. It's all hidden behind the dash, has no visible UI, but I get in the car and the phone takes over, it's in a cradle and becomes the head unit.

I never need to see a map on screen (Maybe because I grew up doing orienteering, or can just listen to the verbal directions, I'm not sure) so that doesn't bother me. And siri can handle hands-off interaction with the device when needed.

I did upgrade the head unit in my family/daily car to support carplay etc, but the primary motivator there was finding a unit that could support a reversing camera. It certainly made the interior feel more modern, but again I don't think it adds much value to me personally.