The post isn't about what Nest doesn't do - it's about smart-thermostats like Nest having straightforward UIs and excessive amounts of IoT bollocks and seemingly arbitrary user-restrictions (e.g. Nest won't let you get raw access to temperature history data directly from the device: you can only get it via flashy GUIs in Google's apps (no API or CSV access) and even crazier: only for 10 days. Google is meant to be the king of Big Data but storing historical thermostat temperature data is too much for google, it seems...).