The only thing is, you know you can, like, buy a dishwasher that doesn't connect to Wifi?
At this point some things are better with bluetooth/wifi. The laundry machine in my building connects via Bluetooth to an app and I can pay for my laundry using it. Do you realize how much better that is than having to go to the bank every few weeks (during work because of course the bank hours are 10-4 these days), get a bunch of quarters, and use them to wash my clothing?
I guess the point is there's more nuance to the HN kneejerk reaction to "Internet of things bad" - some things are easier, some things are dumb marketing gimmicks that quickly die off. Ultimately the market sorts itself out. If people don't want to use an app for their dishwasher, manufacturers will stop making them. Remember 3D TVs?