Such limitations do not necessarily disqualify the paper, but should be discussed reflexively in the paper’s conclusions.
Content-wise to me the key observation is the - potentially systematic - connection between the way cluster policies arestructure and the organization of cluster initiatives. This is not a big suprise, and it doesn't really answer the question asto which model is better (only that there are internally consistent models that are different). But it isstill a usual observation to make.