Every now and then we Can agree on something!
I said before, that the people who fall into this error are probably driven by a desire for a close personal relationship with GOD and they have been misled.
I am not sure they are mislead, wmfights. If you asked them, they would flatly deny that Mary is divine. And they would be horrified to learn that others may perceive their devotion as such.
They are a humble Orthodox couple, whose highlight on a trip to Africa was a chance to pay for some poor woman's medicines. That and other charity they did made their trip, in their eyes, evry bit worth all the money they spent.
They absolutely lack any spiritual pride to make this a personal crusade. What they are doing is inaproporiate, but they are not aware of it.