At the palace gates, each time there's a pick-up or drop-off, those who can't be looked at directly actually walk out on their own in line.
This means they can actually move by themselves.
As Tan Wenbin explained to him, most of the eunuchs and maidservants here don't realize they're already dead, only those great eunuchs and old matrons know they are deceased.
Yet, even so, not even Tan Wenbin's godfather could ponder the question of "what year is it now".
Therefore, the reason they still need corpse drivers to transport them, keeping their feet off the ground, is not because they really can't touch the ground, but because their existence as the undead has its limitations.
Since they can't be transported to the Array right now, they can only let them...
Li Zhiyuan: "Brother Runsheng, let me down."
"Okay." Run Sheng bent down, and the young boy slid off him.
"Brother Runsheng, you go to the Banquet Hall, bring that statue here, quickly."
"Understood!"
"Understood!"