I know this isn't the point you're making, but I find smart lights useful for automatically turning on or off at various times. I don't use Hue, but I think tha

I know this isn't the point you're making, but I find smart lights useful for automatically turning on or off at various times. I don't use Hue, but I think that part should still work if you lost internet connectivity. I suspect HomeKit integrations like "if the door unlocks, and it is night, turn the light on" will break.