That is a nice rationalization of the fact that any god worthy of being called God would not warn both groups, those few who view Mary as a god and those who believe the Holy Spirit is the third person in a Trinity, especially since the Mary is god group was and remains a minor cult even among Catholics.
How Islam views Mary is nothing more than a modification of the Isis/Osiris/Horus myth of Egyptian mythology, where Isis impregnated herself with the "essence" from Osiris in order to give birth to Horus. Muhammad fell into the same Satanic trap that Catholicism/Orthodoxy does with their May is the mother of god heresy. Mary was God's choice for bringing His Anointed into the world, however Mary was not a prophet and is to be viewed "blessed among women" but not blessed above all mankind.
Galatians 3:27-29
28 There is neither Jew nor Greek, there is neither slave nor free man, there is neither male nor female; for you are all one in Christ Jesus. 29 And if you belong to Christ, then you are Abraham's offspring, heirs according to promise. NAS
If any woman should be viewed as the mother of the faithful it is Sarah through whom the "promise" of the Messiah came.
Genesis 17:19-21
19 But God said, "No, but Sarah your wife shall bear you a son, and you shall call his name Isaac; and I will establish My covenant with him for an everlasting covenant for his descendants after him. 20 And as for Ishmael, I have heard you; behold, I will bless him, and will make him fruitful, and will multiply him exceedingly. He shall become the father of twelve princes, and I will make him a great nation. 21 But My covenant I will establish with Isaac, whom Sarah will bear to you at this season next year." NAS
In the NT the Jerusalem from above is called our "mother".
Galatians 4:21-27
21 Tell me, you who want to be under law, do you not listen to the law? 22 For it is written that Abraham had two sons, one by the bondwoman and one by the free woman. 23 But the son by the bondwoman was born according to the flesh, and the son by the free woman through the promise. 24 This is allegorically speaking: for these women are two covenants, one proceeding from Mount Sinai bearing children who are to be slaves; she is Hagar. 25 Now this Hagar is Mount Sinai in Arabia, and corresponds to the present Jerusalem, for she is in slavery with her children. 26 But the Jerusalem above is free; she is our mother. 27 For it is written,
"Rejoice, barren woman who does not bear;
Break forth and shout, you who are not in labor;
For more are the children of the desolate
Than of the one who has a husband." NAS