There are several things like that in Fedora, which is already a good reason not to recommend it to first timers. They most likely won’t know or care about nonfree codecs, they will just see a broken machine. Linux Mint understands that as a use case and has a “magic make it work” checkbox during install.
That all being said, I run Nobara and love it, but i wouldn’t recommend it for new people.
You are correct that this is technically in code and would protect against shock hazards in a neutral error situation but you also get the opportunity for the outlet to pop during the day when nobody is home and the battery to die.
We had a situation in our old house where someone who was technically correct but didn’t think it through had a gfci outlet upstream of the refrigerator outlet. Thankfully it popped while someone was home and we got everything corrected before we lost everything in the fridge.
Ill bet Toilet Truck and Baby Duff will be there in no time.
I haven’t done any work for the military but i can say that all the legacy systems I’ve worked on were because the specific software they need was written only for Windows 98 and the developer or company that created it is long gone. Keeping it going is a chore but switching to literally anything else is out of the question.
I could see for military applications that having the known quantity of a working piece of software that isn’t changing anymore and can be swapped as an entire unit is an advantage, especially if it doesn’t touch the internet in any capacity. But eventually you run out of people who know what to do if any changes need to be made.