A standard furnace and thermostat won’t even know if you pull the thermostat off the wall, much less have any way to handle it beyond “full blast heat 24/7”
More challenging: you expected the sprinkler setup to do the opposite. Instead of following its last-known plan (the schedule) it should stop doing anything (possibly killing the plants it’s watering)
Good off-line only mode in a reasonable plan for what to do without the Internet makes a lot of sense, but at some point, there’s a control system and you need to change it (or even just have one in the thermostat example)
A standard furnace and thermostat won’t even know if you pull the thermostat off the wall, much less have any way to handle it beyond “full blast heat 24/7”
More challenging: you expected the sprinkler setup to do the opposite. Instead of following its last-known plan (the schedule) it should stop doing anything (possibly killing the plants it’s watering)
Good off-line only mode in a reasonable plan for what to do without the Internet makes a lot of sense, but at some point, there’s a control system and you need to change it (or even just have one in the thermostat example)