The mountains are full of treasures, it just depends on whether one knows how to recognize and unearth these treasures.
For Gu Nuan's parents, seeing what seemed like a useless, garbage-covered mountain transform into a place resembling the grand estates shown on TV was like suddenly becoming characters in those TV shows, experiencing everything firsthand, just like Granny Liu touring the Grand View Garden, marveling endlessly.
This is not to say that Xiao Yebai had someone stir up a massive construction, building a Haunted House like Aunt Qiu, which would destroy this natural environment and pollute nature.
No, according to Xiao Yebai's orders, no machinery was brought into the mountain. Nature's treasures are the most precious, and they should not be destroyed by industry. Uncle Qi, along with a group of workers, used local materials and chopped wood to construct buildings.