My parents’ home is like this. Control4, etc. They’re left constantly consulting the low-voltage techs who set it up just to do simple things, and are endlessly frustrated by their expensive system. Meanwhile, I’m the one who actually works in tech, and yet my own home AV setup is just an Apple TV connected as the only input into my TV, and that’s the extent of it (because I know better).
It’s strange though, for my dad, the complexity is a kind of status symbol: “Look how hard it is to use! Marvel at all these buttons and switches! It must be very complicated and sophisticated! Real proof that I’ve made it in life!” I’m not kidding.