We could summarize it as "needlessly Internet connected, reporting to some endpoint in the cloud outside of your control, which is now a point of failure".

Indeed my dishwasher is likely more reliable, and my fridge can get more efficient with a microcontroller. But the 2017 version is likely to suddenly stop working is someone in Korea forgets to renew a certificate (or worse, become part of a botnet, or act as an breach in the security of your network like the aquarium in Vegas I read about lately). Most of the times, the "added value" of this new dependency is harvesting your data for profit (which won't get passed down to you as a better price, don't worry).