Why was G.T. Haywood such a critical figure in the spread of Unitarian Theology?

The news of Haywood’s defection caused consternation among the Assemblies of God leaders. Since Haywood pastored one of the largest churches in this movement and was their leading negro pastor. Suddenly from heaven, the wildfire that had been slow to start now began to leap from mission to mission, assembly to assembly, until it became the issue of the day. It threatened the life of this fledgling new movement called the Assemblies of God.