If a player has a significant advantage, the neutral creatures often try to flee rather than fight. And it becomes uninteresting – hit one, hit another, and so on. However, an unupgraded army with an unlevelled hero is unlikely to give an advantage in speed and strength at the beginning of the game.
An advantage in strength is created locally – in terms of overall numbers, the neutral creatures may even outnumber our army. And we defeat them in parts, so to speak.
At the same time, the hero's ability to eliminate neutral units completely or almost completely with the first attack is extremely important. This is Attack.