I agree you can never reach perfection. I expect there'd still be postmortems with "Our safety check was missing/bad" in the "what went wrong" section for various project-specific technical reasons. But I'd expect there to be (a) fewer such postmortems, and (b) an action item to fix the job's safety check service specification and audit the team's other ones, rather than the rather inexcusable IMHO "this tool doesn't support those, /shruggie, maybe schedule more training about which tool to use".
