While the "Gay issue," amidst other concerns, certainly raised hackles, it was not a deciding factor.
This was:
In an Oct 18, 2006 radio interview Bishop Jefferts Schori stated, “Christians understand that Jesus is the route to God. That is not to say that Muslims, or Sikhs, or Jains, come to God in a radically different way. They come to God through human experience – through human experience of the divine.”
“We who practice the Christian tradition understand him as our vehicle to the divine,” the presiding bishop told Time magazine in its July 10, 2006 issue. “But for us to assume that God could not act in other ways is, I think, to put God in an awfully small box.”
and this
Is belief in Jesus the only way to get to heaven?
We who practice the Christian tradition understand him as our vehicle to the divine. But for us to assume that God could not act in other ways is, I think, to put God in an awfully small box. Really, there is so much more. But those two samples give you an idea of the sea that has flooded the rift between the Anglican Communion and the exciting new doctrine of relative salvation that Schori has made the cornerstone of her new church.