Most of them wore coarse burlap clothes, their faces marked with exhaustion and foolishness, like donkeys that have shed their harnesses, carrying burlap-stitched bundles on their backs.
Not only was their attire unusual, some held weapons incongruous with the Maze, like pitchforks or modified hoes... These might be quite intimidating on open ground, but in the narrow confines of the Maze, they were unlikely to be as effective as short weapons or shields.
It seems they are completely clueless about the Maze's environment, likely lacking even protective talismans to ward off Spirit attacks. They were probably mixed into this level with a large group from shady merchants.
Some merchants, looking to cut costs, would hire cheap or even free rookies as guards, relying on numbers to scare away Demons in the Maze.
And typically, the Demon King's minions wouldn't attack merchants who had sworn neutrality, which allowed them to make it to this level by sheer luck.