Post-mortem, 5-why, retrospection - all this to understand what and how it happened so the org may introduce change so that it doesnt happen again. Then another edge case happens and the cycle repeats. Humans do this cycle all the time - big orgs invented the above structure for this process to be visible and collaborative and so that the rest of the org can learn too. Then you put execs on top, they will come, ask some questions so they can sleep better at night. Corporate playbook, some people hate it, the rest understands it… and plays the game.