I should start off by saying I don't typically trust anything that ends with '-trix' that references the Theotokos, except "mediatrix" as it refers to her intercessory prayers.
and also establishes that a personal devotion to the Blessed Virgin Mary is required for Salvation.
Nope... but I've never seen that before! How could this be accounted for among the, I think the term is, "invincibly ignorant", if they have to be devoted to the Theotokos? Wouldn't that connote conscious knowledge of Jesus Christ as Lord, God, Savior, and Second Person of the Trinity?
Further it would hold that Our Lady is actually responsible for mediating the Graces of the Holy Spirit.
I guess that leaves open the question of how the Holy Spirit would have had to "come upon her" in the first place (Lk. 1:35), if she not only already had it, but was also already personally responsible for its presence in the world. That might not be a question for RC's (considering the Immaculate Conception dogma) but that question would definitely occur to us Orthodox and on that basis I'm sure we would reject it.
So given the above I would like to know what the Orthodox view of this would be. I realize you would be against any formal dogmatic declaration and I completely respect and understand that.
Well, actually, if in fact devotion to the Theotokos was required
for salvation, I think we might be interested in dogmatizing that, but it's a moot point.