All the higher-ups clearly saw the withering strength of the enemy.
Be it those that landed on the island to attack or those that flew around in search of weak points, the demons were incapable of finding a way in. Under Eleanor's precise attacks, every minute that they stopped posed a huge risk to them, resulting in extremely high injuries and death counts that were unacceptable for the Devilbeasts.
Soaring in the air meant speed, agility, and zero hindrance from the terrain. The Devilbeasts had ruled the skies for centuries and always held the absolute power on the battlefield. But in the face of the floating island, they probably never expected that more than half of them would fall even before seeing their enemies.
There were even demons that had started to turn tail and retreat… or in other words, escape.
This was the perfect opportunity for the humans.
