Isn’t the Orthodox Church part of the World Council of Churches?
Yep. There’s that “justice” word again.
World Council of Churches
Inspiring the worldwide fellowship of churches to work together for unity, justice and peace.
https://www.oikoumene.org/member-churches/orthodox-church-in-america
All the ancient churches except for the Catholic Church (which is to the left of the WCC) and some "uncanonical" Eastern Orthodox traditionalists, are members of the WCC. That includes the ancient ethnic churches of the east.
Also the Orthodox Church was going liberal before the Catholic Church. One of the Patriarchs of Constantinople (who was allegedly a Mason) put his churches on the Gregorian Calendar. And now the "canonical" Orthodox churches are a mess.