Organization may be either for authority or function, or both. There is no pyramid of governmental organization in the EACC either universally or locally. No one has authority over others. In exorcising the structural hierarchical demon, we must not strangle the body. There can be no totally unorganized corporate function.
Assemblies are bodily activities.
Planning when and where to meet, who will prepare the Lord's Supper, and who will teach a lesson is organization. It is not structural, but functional. Paul's illustration of the body in 1 Corinthians 12 emphasizes the corporate work of individuals. Emphasis on organization at the expense of other factors, like loss of individual initiative or freedom is institutionalism. Neither Jesus nor the apostles fostered institutionalism.