The horde had far fewer numbers than Jill saw in her vision. At first they thought that their numbers were quite large because they were driven by fear.
The fighting force can only focus on fighting now that the horde came. So they didn't bother to count and instead just focused on fighting.
That's why they don't realize it. Now, they are fighting with all their might and when this is over they will probably be exhausted.
'No. Their level is high enough so they won't get tired easily.' Barry shook his head against the idea. Accompanied by the hope that it is true.
As he thought. A few minutes later the whole monster in the horde was killed. The fighting force cheered happily at their victory.
Several injured victims fell but no one died. It was a good thing.
Barry went back to the ground and told his friend about what he found. They all immediately looked at him with pale faces.