I must agree with Devin in the thrust of his theology and leave the art of his argument and presentation to others. This isn't he Supreme Court and posts here aren't legal briefs. We can allow a little charity in expression.
We have no tradition of women serving as bishops or priests. That is the end of the matter except perhaps for digging into the implicit theology of what we have received and what it means…it's implications. What is implied concerning gender and role by the Tradition which recognizes only male ordination to the priesthood and episcopate.
We do have a tradition (now largely defunct) of a female diaconate. It's been so long since it was common the details are fuzzy on what their liturgical responsibilities were. We know it faded away fairly quickly throughout Orthodox christendom after the 5th century. We know that a type of female diaconate survives within the Coptic faith, and given their general theological and sociological conservatism, we might study what they do/have done should it ever be considered prudent to make a general restoration of the female diaconate. There is nothing to preclude it's being done if there is a need for it in the Church again. We have this within our tradition to appeal to, and from it our faithful and hierarchs, as God leads, could reestablish this ministry. It can be done. There is no Tradition for female priests or bishops it cannot be done, and those involved in it's doing, should it ever be attempted, do not remain Orthodox without repentance and reconciliation to the Church.
St. John Chrysostom said, "Is it the Tradition? Ask no further." That is surely sound Orthodox counsel.