Complexity Thinking is not a subset of Systems Thinking
Complexity science has a different origin and history from systems thinking although there are common points., and there are third-party sources to back this up.
I have never disputed that the various forms of systems thinking have sought to address complex problems, and in doing so have developed a body of methods and tools of considerable utility.
Saying that one thing is different from another does not mean that one thing is better than the other
That is the essence of the Cynefin framework, to say that things are right or wrong within boundaries (Bounded Applicability)
