I was going to say something like this, that products (like a lot of things) are a combination of multiple users' wants, but I'd say that the main problem here is that the implementations themselves are becoming more monolithic.

The extreme case (as you mention) is the moment you stick in a touch screen and a fair amount of intelligence. You might as well put a jillion features in there plus you save money on physical controls.

They used to be capable of building cars with numerous option packages in the 1960's and 1970's, it's pretty remarkable. The 1969 Camaro alone had probably a dozen different engines available from 3 families.