Just going off of what you bolded and underlined in your post.
I meant that here's the Trinity (Father-Son-HolySpirit), and (since we're talking precisely about the Incarnation) here's also Mary, not some kind of quasi-goddess but a human person, a person redeemed by Christ her Savior, a/k/a/ the handmaid of the Lord, overshadowed by the Holy Spirit, mother of the Incarnate Word --- isn't that about as Trinitarian as you can get?
Merry Christmas+1, 5thGenTexan!