In order not to waste the time of the fighters, they usually wait some time before descending to the tunnels so their movements would be continuous, rather than lagging after the goblins as they dug.
However, this gap wasn't too wide. After all, goblins were fast diggers, especially when there were this many.
As for why there didn't seem to be human enemies coming from the direction they dug this time, it was actually quite simple.
They blocked it preemptively.
For example, at this time, hundreds of people were walking several feet underground, weapons up, prepared to rise up and defend themselves as they reached the walls and climbed up.
There was a high-level earth elementalist there. He was already preparing his energy and mana so he could create instantaneous plateaus and stairs for his teammates to use.
