Only if you didn't understand conventional use of the term. Since no one really speaks Latin anymore, the conventional use of the term is all that matters.
If a speaker uses a term and the audience understands it, whipping out your Latin dictionary is pointlessly pedantic.
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.
If a speaker uses a term and the audience understands it, whipping out your Latin dictionary is pointlessly pedantic.