In the onset of the Middle Ages, Christian education and formation was being taken over by ordained men---with doctrine becoming more formalized.  Those teaching the doctrine were ordained men chosen by bishops, rather than by people selected by the local congregations.  And bishops were being appointed, rather than being chosen by the people of local congregations [as was done during the Apostolic Age].


The Eastern church also sins in treating priests as ontologically superior to the people.  The people are not considered 'good enough' to even see what is occurring at the altar---as though they were unbaptized.

Men are preferred to women.  When a baby boy is baptized, chrismated, and receives communion [a particle], the baby boy is carried behind the iconostasis---into the sanctuary by the priest or deacon.  But not the girl baby.  She is raised just as highly to God as the baptized boy---but not in the Practice of the Eastern Church.  Its 'orthopraxy' is discriminating.