You're both forgetting that according to the situation as I understand it, NOTHING HAD FAILED, other than the Internet. The NEST thermostat was working perfectl

You're both forgetting that according to the situation as I understand it, NOTHING HAD FAILED, other than the Internet. The NEST thermostat was working perfectly as far as we know. Nothing had broken, it had lost connection to a resource, yes, but that should not prevent it from doing it's job, i.e. keeping the temperature of the home at or near a given temperature.