I was just thinking the same thing recently: it's not random, and there aren't that many playable maps anyway. And if you write out the perfect game for all colors and factions together, up to the point of encountering the opponent, then it won't be interesting to play anymore if all players act the same and predictably (and if you also analyze each player's behavior in response to certain actions by the opponent), it will become less of a game and more of a lottery, where whoever gets luckier with artifacts and other things, depending on the map (magic, strategic heroes, money, guard posts, companions, etc.), wins.
Besides, it's very time-consuming to describe everything day by day, and you have to replay the game yourself for each color.
So, having a template for how to play well on one map for one color is enough, so that even those who ask questions like "how to clear everything on your starting area and break through the guard post on the 5th day of the game without losing tempo" can see for themselves, move by move, that it is quite possible (and not just words that "yes, it is possible") (and then there's even a discussion about why it's needed). And I think that's where we should stop with such detailed day-by-day analysis for the remaining maps.