You have completely missed the point. People complained that long war is *too long*... not that it is *imbalanced*.... The game maintains it's difficulty from the beginning to the end - BY DESIGN. If you set it to max difficulty then yes, it will be hard as f..k to play, but it will be hard as f..k to play from the beginning to the end.... You also have options to spice it up and customize however you like but that's beside the point. The point is that the core of the game is well balanced. Whenever players found something that was considered a universal strategy and that was applicable in most situations, devs made an effort to balance it. As a result there were hundreds of different strategies to win the game but none of them was considered predominant. No one had to put artificial restrictions on oneself not to use some functionalities not to spoil the game... You were actually forced to use all functionalities to deal with various situations as there is no "out of jail free card".
In Adom right now the situation is different. Late game I do not give a f... about 90% of skillset. Why bother if I can teleport or heal. Sure I can do something fancy once in a while but mostly it is pressing forward to victory and healing whenever you need to. No real planning involved. If something goes wrong you simply react to it with those two mentioned "universal keys".
P.S.
In long war devs explicitly advise not to play max difficulty... it is in the game manual.