The issue is that one’s fridge or light bulb becomes a lodgment from which an adversary can launch LAN attacks (e.g. via Ethernet) on one’s more-sensitive devic

The issue is that one’s fridge or light bulb becomes a lodgment from which an adversary can launch LAN attacks (e.g. via Ethernet) on one’s more-sensitive devices, such as one’s personal computer (which contains more-or-less one’s entire life: banking details, correspondence and so forth). I don’t really care if the IoT device is compromised; I do care if it is used to compromise my trusted devices.