they're saying that "slime mold" culture, where independence and initiative are rewarded, it's possible for one employee to write a document like this. The employee can examine and criticize the culture because they have a high degree of independence. The "slime mold" culture is capable of being more introspective than a more "top down" culture can be.

I think they're also saying that the document is written from the POV of a single employee, and isn't the result of a full study/survey of the whole company