Good post AlphaOneSix,
However I think that you are overthinking the random failures I am talking about. All they have to do is put a very small % chance that a light or other system will break during the mission and at what time it will break. Most things will have .1 % chance (1 in 1000). It doesnt matter if that number is accurate as all we care about is that it CAN fail. The rivit counters can bitch about the % later.
I fly for a living and things do, indeed, fail randomly. All the time actually. And things do break when they are new as you probably know about the "U" shaped curve (things break when they are new or old but not so much in between).
As I said. All the work the devs did in testing ability with no fail chance is like building that 10,000 foot concrete runway and then using it for just a cessna 152.