Case 2 probably ends up being hacked to mine cryptocurrency. If it's a prosthesis, I guess it secretly does delivery runs when you're sleeping. If you (a normal consumer) don't burn out the motor/blow up the battery while messing with it.

There are tradeoffs from supporting-but-not-really-supporting unmaintained products. Also, in this case, it sounds like they were missing hardware that wouldn't have been fixed by publishing the software.