This, I believe, would indicate the Arianism of Armstrong survives in your group.
You need to read further. Arianism taught, I believe, that father and son were not co-eternal and that the father created the son.
The bible teaches that the father and son have always existed together eternally.
Joh 1:1 In the beginning was the Word, and the Word was with God, and the Word was God.
Joh 1:2 The same was in the beginning with God.
Joh 1:3 All things were made by him; and without him was not any thing made that was made.
United agrees with this view.