Were Augustine's Trinitarian views every anathematized in any council? Are western trinitarian theologies (there are many models of the Trinity) formally heretical (they have been anathematized), or is this a matter of disagreement about an inessential.
I'm very comfortable with the Cappodocia emphasis on the Threeness of God with the subordination of the Son and the Spirit, but I don't completely understand how the western emphasis on the oneness of God is "wrong".
Jesus said "The Father is greater than I", and I can't help but think that means the Son is subordinate to the Father. Not necessarily in an Arian way, but it does fit with the Cappodocians, and I have only entertained the interpretation that it meant Jesus was only speaking of his humanity in doing so- which just doesn't seem to sit as well in comparison. I have no idea how other Protestants understand this verse, as Trinitarian theology is not something people often think about or discuss, for good or ill, probably mostly ill.
I've head arguments sometimes, for instance in the Anglican diocese of Syndey (which is the opposite of the Episcopal Church on many issues, but still considered just as much a troublemaker by many), a few people have criticized their theology for subordinating the Son and the Spirit and a religion commentator there thought that was unprecedented and strange; they also have used that theology on occasion to justify their subordination of women in their churches.