Mallon needs a reeducation in his faith. The wine is not symbolic of the blood of Christ. Roman Catholics believe in the real presence of the body and blood of Christ, as confirmed by the words of Christ in Scripture, in the consecrated host and wine; transubstantiation.
It is arguable that what is left of authentic Catholicism and orthodox tradition is living off of the near-spent legacy of the pre-Vatican II Church. That includes progressive liberal enterprises like those at Georgetown University or of Richard McBrien of Notre Dame, both institutions which rose to success and prominence BEFORE Vatican II and the 1960s. Take away the gothic buildings and the libraries built from the entirely pre-Vatican II coins of Irish laborers and little-old-ladies' pensions, and you'd just have whiny liberals in bad modern buildings scarcely distinguishable from their secular liberal counterparts in NOW or the Sierra Club. Imagine what the Church in America would be like minus the St. Patrick's cathedrals if it was entirely designed by Weaklandesque iconoclasts. Without the pre-Vatican II legacy, Catholic liberals are nothing. No one will read the ravings of Richard McBrien or Maureen Fiedler a hundred years from now, but the writings of Aquinas, Augustine, and Newman will still inspire faithful Catholics.