There were lots of additional crew members, ground personnel, etc looking at plenty of other F’ ups as well.
If it it can be screwed up, it eventually will, saying otherwise ignores the fallible human and technology built by fallable humans. There likely won’t be just one reason but a compilation of them that will place the aircraft in an undesired state.
I’ve read your opinions and generally am in agreement (especially the political realm) but can’t agree with you that humans can be relied upon to the extent you think.