GP is correct. Very few people were capable of even the informal analysis you are describing, and fewer did it. I'm not saying it's not valuable... just stating that, empirically, it rarely happened.

And layer8 is saying (two responses upwards by them) that this is a novel benefit of AI: it can do a particularly thorough and repetitive kind of fault analysis that is a real PITA for humans to do (by their nature, versus the nature of computers).