That is a very literal interpretation of post"mortem" to which I don't subscribe in this context. The Oxford Shorter English dictionary I have on this iPad also includes this definition: "An analysis or discussion conducted after the conclusion of a game, examination, or other event." (I won't get involved in a discussion of what a dictionary is or what its purpose is, sorry.)
I also like and use the term postmortem to mean what this author calls retrospectives, and use the term retrospective to mean a more general look back without being event-based.
I also like and use the term postmortem to mean what this author calls retrospectives, and use the term retrospective to mean a more general look back without being event-based.