Auto-translated
I don't consider myself an experienced or skilled player enough to offer any suggestions. I think we should discuss it calmly. After the discussion, we can make changes, leave it as it is, or even revert to the previous version.
I think the restructuring of the game mechanics has made significant changes to the game. In my opinion, it has increased the chances of weaker players beating stronger ones, but on the other hand, the restructuring of the game mechanics has also significantly reduced the duration of the game.
Perhaps we need to consider both the balance of the game and the game time (time consumption as a negative factor in Heroes).
Yes, the mirror map has appeared, but it hasn't made things more balanced. As Wiss wrote, it's either Necropolis for one player or leveling up a hero (Earth, to put it simply), but it has reduced the element of surprise in the map. There don't seem to be any easy answers.