Harley, we've had these discussions before. Catholics and Orthodox venerate Mary. She can save no one. What she can and often does, is lead men to salvation in her Son. The expression in Latin is Ad Jesum per Mariam - to Jesus through Mary.
Yes, I don't wish to discuss the veneration of Mary (at least not now). I'm simply trying to point out that nowhere in the article does this author talk about "preaching Christ crucified" as a method of bring Muslims to salvation. You may think some will make the connection between Mary and Christ. I do not.