The description of the rationale for using the Filoque side-steps the scriptural issue neatly but in a manner that only the elite would know. What is unfortunate is that much of Scripture is still a mystery for many Catholics. My former teacher for religious studies in college was a daily mass attender and devout Catholic-but he said and I quote: "I don't know the Bible".
     The Fundamentalists have co-opted familiarity with chapter and verse, which is unfortunate, as Genesis is a theological narrative, not science. The issue is authority-and clericalism depends on the ignorance of the laity for its continued dominance. 
     I think, rather, that Mariology has confused the issue of the role of the Holy Spirit in the church. Yves Congar, French Jesuit commented when perusing official documents was of this wise: "Wherever I expected to find commentary on the Holy Spirit I found references to Mary."