I think your anti-pedanticism is excessively pedantic.

Conventional use of the term does indicate an analysis of events after something has come to an end - if not necessarily death. A company, a project, an incident response.

I'm with GP on this one. Based on the title, I thought that the project had in some way come to completion and this was an after-the-fact analysis of cause, effect, and resulting behaviors.

As you said, the conventional use is what matters - and the author here has used the term in a non-conventional sense.

Edit: another read through after seeing the author's comment below. The project did, in fact, come to an end - though that wasn't really clear. Given the content I think the "retrospective" is a better fit. The author used this in the content of the entry itself.

That was the sense in which I was using it. Game Developer magazine always used to have a section where they had developers do a "post mortem" on projects they had finished and they were very instructive on what had gone well/poorly.