As is often the case, only Paul Tillich manages to deal with the matter with some sense of proportion: Paul Tilich : A History of Christian Thought, Page 78 "The (holy ) Spirit was replaced in actual piety by the Holy Virgin.
The virgin who gave birth to God acquired divinity herself to a certain extent, at least for popular piety." Which, to me, is like the evangelical tendency to swallow up the Trinity in the person of Jesus, what has been called the unitarianism of the 2nd Person.