In the United States, the Orthodox churches are usually populated by the elderly.  Few younger people attend.  In Europe, that is not the same problem.  The cultural ties in Europe---are more important to the people than the 'theological-babble' of theologians.  But in the U.S.---the multi-cultural, multi-religious mix that America has---has made the bias less strident.  But here, too---why would the Orthodox  even care to change things?  The sins of both the Catholic Church and the Orthodox Churches have festered since the early days of the Christian communities.  At least the meetings between popes and patriarchs are 'polite'.