>>I thought aviation is THE industry that runs on procedures and checklists you need to tick before and after each flight to make sure the even if you're a complete klutz, nothing like this can ever happen. Did that go out the window?

Just a day back they dropped a $10 billion(20 years in development) origami transformer-like robot telescope(jwst) on the floor because some one forgot to secure a clamp well enough to hold the piece in place.

So I'm guessing regardless of whatever people say about six sigmas, checklists and procedures, human errors just continue to happen regardless.