[theamk]

We are talking about things like light bulbs and weather sensors.

They do not pretend to be humans, and will never run AI on the device itself, so there is no concerns about social manipulation.

But there are concerns (and many, many examples) of devices that rely on vendor's cloud.. and the vendor goes out of business, making devices useless. If there is no secure boot, people can flash alternative firmware and make devices usable again. If everything is signed, the device has to go to landfill instead.