The author writes about identifying the processes but does not attempt to discuss any solution(s) on how to handle the unstructured processes.
If the author wrote this article to only identify the need to highlight unstructured processes then that is fine. But, we should also make use of our posts to share solution(s) to problems, even if it implies that you flog your own companies suite of products. This approach would add punch/value to your article.

Also, I do not believe that example #5 "Complex Project Management processes" constitutes an unstructured process.
..."to track, control and coordinate the people processes" in my own experiences in PM are not an unstructured process. In fact they are very structured as I have ensured that my project plans are designed to address "the actual interactions between the people involved in the project".