From my experience steam guides are where people seek to learn something about the game, and I myself spent many hours going through brilliant guides of Zigzagzigal on Civ 6. I don't think the post-mortem fits there well, while on the other hand civfanatics is the place where all civs fans eventually arrive ready to talk passionately about the game. And IMO this is where post-mortem and the discussion around it should live. I also firmly believe that the discussion that all of us had here across many pages is worth roughly the same as the post-mortem itself, and I'd prefer to not see it split between forums or platforms.
For reasons stated above, I won't be giving the post-mortem the rating on steam.
On a side note, your steam review clearly illustrates your despise of Civ 7, yet you still played over 1000 hours of it and created this post. The passion you have for this game is insane to me