I'm not stopping you from trying to put your theories to the test and I'm not saying the current reality is good. However, I think you'd be surprised how complex some of these systems are. An automotive system like the article is describing is a distributed realtime system of anywhere from dozens to hundreds of networked processors built without traditional operating system support. It's frankly a miracle they work at all.

While I don't work in the automotive field, I've worked on adjacent-esque distributed systems with some of the shared protocols (e.g., CANopen). Part of my lament here is that almost no effort has been put into anything other than running C and C++ on embedded systems. While hard real-time systems are a thing, other pieces have often still been implemented in C and C++, which is a shame. And it's also a shame that more effort hasn't been put into realtime garbage collectors, especially in this age of multicore embedded CPUs.

I fully agree that it's a miracle any of the existing stuff works at all. I honestly have no idea how C and C++ developers make it work. Despite being the oldest and most used languages, the tooling is atrocious.