> ... if you know the secret button sequence to break out of the menu.

I did see the twitter screenshots, but as I don't own the device myself I couldn't really judge if the GP's instructions are readily apparent to the average user.

Also, I don't disagree with you. But the OP seemingly bought such a device and connected it to their wifi. Maybe they are living in a furnished apartment with pre-configured wifi? Anyway - thankfully we are not yet in an era where ones only choice is a connected dishwasher - can still buy used, older models etc.

edit: One would hope that you can factory reset the dishwasher to make it forget the wifi information, if it has been configured by someone else.