The academically disposed term "systems thinking" has run its useful course.
Thinking without action is not learning and is likely delusion. Action learning is systems learning and using what is learned in action is systemic action.
Perhaps people participating, acting successfully, in systems is what the proponents of systems thinking were hoping for. That is different from the result of thinking being books, papers, discussions without actions to qualify the meanings.
Senge clearly had action and experiments in his Fifth Discipline book 
.
I think that modeling action, diagraming community conversations is another way into shared understanding of systems, locally then globally.
It matters whether the primary purpose is system or the life of a community. In the first case it is tempting to try to teach "systems" out of the context of the community. The second case allows system to be explored in the community and learning as needed for acting strategically and systemically.