I want to know the answer to the following question:
What did this theological study do to set itself apart from the other groups ?
All the background I'm provided with is that "Contemporary Eastern Orthodox Christians often object to the dogmatic declaration of her immaculate conception as an "over-elaboration" of the faith and because they see it as too closely connected with a particular interpretation of the doctrine of ancestral sin.". Is that enough to answer the question?
Answer: no