Are you coming to this conclusion strictly from what the OP has quoted?
I’m guessing you’re looking at this part of De Montefort’s quote:
“for only this singular and wondrous virgin can produce in union with the Holy Spirit singular and wondrous things.”
St. M. Kolbe:
“It is above all an interior union, a union of her essence with the “essence” of the Holy Spirit. The Holy Spirit dwells in her, lives in her. This was true from the first instant of her existence. It was always true; it will always be true. In what does this life of the Spirit in Mary consist? He himself is uncreated Love in her; the Love of the Father and of the Son, the Love by which God loves himself, the very love of the Most Holy Trinity. He is a fruitful Love, a “Conception.” Among creatures made in God’s image the union brought about by married love is the most intimate of all”
And still more from St Kolbe:
“the Holy Spirit lives in the soul of the Immaculata, in the depths of her very being. He makes her fruitful, from the very first instant of her existence, all during her life, and for all eternity. This eternal “Immaculate Conception” (which is the Holy Spirit) produces in an immaculate manner divine life itself in the womb (or depths) of Mary’s soul, making her the Immaculate Conception, the human Immaculate Conception.”
Her own name, Immaculate Conception, is also the name of The Holy Spirit. It’s a spousal union, and so, the sacraments can’t be separated out from Marian spirituality. They are in themselves what Marian spirituality is, whether we identify Our Lady’s face in them or not.