ClippedCub,
In modern fighters, the weapons systems are very complex. The flight control/management computers are trained to only bug the pilot with sequenced, pilot action only, messages during combat engagement, since he's busy targeting, etc.. [SNIP] Would have thought some of that logic structure would be present in civilian airliners.
When you increase "software intelligence", you exponentially increase incorrect specification risks, code complexity, testing costs... If you want a cheap, testable, reliable software, better make it as simple as feasible. You can go for more complex softwares only if you have the extra-money... and are willing to take the extra-risks that come with them...
From a quick glance at the
RISK database, there may be rather more fighter software bugs that pass undetetected. I guess the most famous example was the
F-22A software bug:
At the international date line, whoops, all systems dumped and when I say all systems, I mean all systems, their navigation, part of their communications, their fuel systems.
I doubt that such an error could have made it undetected up to real-life flights on a civil plane...