I just re read that policy article It says that an article mustn t be based entirely on primary sources this one isn t and it also doesn t say that there must be a certain minimum ratio of primary to secondary sources It doesn t even say that secondary sources must be in the majority So officially I think the article is on firm ground But I don t think that s going to stop Verbal from cutting stuff out I just noticed that the policy article also says Articles may include analytic or evaluative claims only if these have been published by a reliable secondary source But to the best of my knowledge I ve never done that All throughout I have honestly tried to convey the material in a factual way