The defenders of the attacking base are indeed quite strong, regardless of the level of purge. And the distance to their base is unpredictable, regardless of the landscape. Sometimes their base is placed outside the line of sight, which is also very inconvenient.
We need to carefully consider the configuration of our own base in order to protect ourselves from enemy archers and not allow our followers to run out into the crowd of attackers. Variations on the theme of the widespread “corridor with inclined walls” design are often used.