That’s not actually a postmortem of a list of process changes. Nothing about how WIP changes made it through into a code release nor in how such mistakes will be prevented in the future. There’s a much richer discussion of options in this thread of things people do to prevent things like this. For example, reading environment variables from a file that’s gitignored so that you never accidentally commit something and you don’t need to mutate code to do a config change.

He may indeed have learned from his mistakes, but I’m pointing out the flaw of assuming every mistake was treated as a learning opportunity, especially when no real evidence exists to suggest that.