[gwerbret]

Both are very reasonable features, of course. Here are (some of) the real-world challenges to their implementation:

#1: Requires competence, and/or management that isn't too focused on velocity and features to listen to their engineers' warnings about exactly the sort of problem being discussed here.

#2: Many firmware updates explicitly and specifically want to strip away features that the hardware shipped with (by introducing DRM, paywalls, etc.), so see the comment about management above.