[tpxl]

> the devices as sold and authorized to be on the road (or in patients' hospital rooms) don't get modified in dangerous ways

What use is preventing dangerous modifications, when unmodified devices contain critical safety bugs, and will continue to contain them. The ongoing effort by automakers is increasing the amount of safety bugs by connecting everything to the internet without proper security practices.

The only reason to require signed firmware/hardware as it stands is to decrease the repairability, harm the second hand market, and increase profits.