Since the observation is pertinent that thus far the watershed is fed from a distinct French sphere of influence, a mental exercise is needed to broaden the view.
It may be interesting to compare two contributions to Sufi studies from this same angle - (1) Seyyed Hossein Nasr "Revelation, Intellect and Reason in the Qu'ran" in "Sufi Essays" - London and Albany, New York 1972.