Those home automation products are marketed to the people who have the money to buy such fancy home automation widgets.

Those people also typically want to "save the environment", but I doubt they want to save it so much, that shaving a fiver off their power bill means they get a thermostat tell them when to wash their dishes and do their laundry.

Putting the dishes and clothes in and out is still a manual activity, so this makes absolutely no sense to be scheduled by a thermostat, unless you have waaaay too much free time on your hands.