The basic premise of this article is good: the application of Ostrom's design principles as a way of analysing / evaluating governance in third sector organisations is quite innovative, particularly combined with a discussion of third sector / cooperative governance principles.
The comments added in the beginning of Chapter 3 on methodology are important and improves the text a lot. The author openly acknowledges that the basis for a complete picture is lacking. I do not expect the complete picture, but should have comments on limitations and to what degree the conclusions and learnings are possible to generalize.