Dalsham's eyes were still widely opened in disbelief. Perhaps even in its final moment, the Hobgoblin still had no clue how Hespar found the opportunity to cut its head off.
"How did this happen?" perhaps, this was the last thing running in its mind as the consciousness slowly disappeared.
Unfortunately, the result was undeniable, no matter how much disbelief it was. Dalsham's consciousness gradually faded as the head touched the ground and rolled for a moment.
Following that consciousness was the unspoken authority over all the goblins. Like something vanished from their mind, the army of goblins now had no idea what it was doing and their reason for being here.
This means the hierarchy with Dalsham as the core has crumbled.
Without that leadership imprint in their head, the goblins were nothing but a pile of loose sand with difficulty reforming their ranks. Those Evolved Goblins and Goblin Elites could have the chance, but none of them would even give it a try.