To me, this is just a question of specialization. Not everyone needs to be a "I understand how the system actually works" person. In fact, not many people need to be that person. But every system does need some of that person to exist!

And we happen to be discussing this on a forum where the type of people who will be the specialists for the kinda of systems we're discussing are likely to gather.

I'd be surprised if in my casual discussions out in the real world, I were to run into a lot of people who care exactly how all this works, to the extent that they want to invest significant money into hardware that allows them to run things themselves and dig into what's actually going on. But I'm not at all surprised to come across such people here! (Indeed, it would be very disappointed if I didn't!)