All trained behavior like pushing a light switch to turn the lights on and off are violated in a smart home, even if it’s just because the delay between pushing the button and the lights going on is increased by 100ms.
This is only true if you're controlling bulbs instead of switches. Virtually all of my lights are on z-wave switches that work almost exactly the same as regular switches, the only difference being that the switch paddle doesn't stick in an on or off position. Smart control is strictly in addition to the primary control.
Completely agreed on your other points, though. Absolutely no chance I'd use anything other that a local Home Assistant server that handles all processing locally.
This is only true if you're controlling bulbs instead of switches. Virtually all of my lights are on z-wave switches that work almost exactly the same as regular switches, the only difference being that the switch paddle doesn't stick in an on or off position. Smart control is strictly in addition to the primary control.
Completely agreed on your other points, though. Absolutely no chance I'd use anything other that a local Home Assistant server that handles all processing locally.