It turns out that Feng Jun has been spoiled by the luxurious material lifestyle of the Earth Realm. Yuan Shangren proves to him once again that this place is an underdeveloped plane; even in the Cultivation World, the material life isn't necessarily so enjoyable.
Yuan Shangren first tells Feng Jun that although the building looks small, it's actually quite large; it's the feeling of "looking at the mountain and exhausting the horse."
Additionally, the Wen Family Disciples here mainly focus on cultivation aside from various chores, and the accommodation conditions are not great. The large dormitory is divided into upper, middle, and lower bunks, and a ten-square-meter room can definitely house ten people.
In other words, you could indeed squeeze ten thousand Wen Family Disciples into just ten thousand square meters of housing.
