For me, the title “Mother of God” requires more explanation than “Mother of the Incarnate Word” and therefore I would say the former is more over-simplified than the latter.
Nevertheless, and no matter what titles we may use for faithful Christians, the Names of God must be hallowed.
And ye shall overthrow their altars, and break their pillars, and burn their groves with fire; and ye shall hew down the graven images of their gods, and destroy the names of them out of that place. Ye shall not do so unto the LORD your God. - Deuteronomy 12:3-4
To God be the glory, not man, never man.
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ABSOLUTELY INDEED!