"Beware of appeals to the 'real world'; and to what it supposedly demands. It is always an invitation to leave unchallenged the speaker's tacit assumptions."
Not demands. It’s just the reality of where we are. People who claim everything will improve by allowing p2p connections by default are woefully out of touch with the shit show that is IoT.
The IoT shitshow is never going to improve, if IoT device makers can't be made to stop offloading the cost of their laziness and bad systems thinking onto a network layer that was never intended, and is poorly suited, to be the ne plus ultra of device security.