[Galxeagle]

I get the sense that #2 is viewed as a risk for DRM, given all the work that goes into preventing firmware downgrades to potentially insecure firmware. Specifically thinking of the Nintendo Switch[1] that goes so far as to blow fuses on each firmware upgrade!

https://news.ycombinator.com/item?id=23534793

[Tijdreiziger]

eFuses were already on the Xbox 360/PS3 generation. Smartphones also use them to lock out proprietary photography algorithms if you unlock the bootloader.

https://en.wikipedia.org/wiki/EFuse