score:3
The issue here is that your trying to find something that's not there.
The doctrine is simple and plainly stated by the prophet just as you quoted:
As man is, God once was; as God is, man may become.
That's it, there is nothing else to it.
If you want a scriptural reference from the New Testament:
Romans 8:16-17, 16) The spirit itself beareth witness with our spirit, that we are the children of God: 17) And if children, then heirs; heirs of God, and joint-heirs with Christ; if so be that we suffer with him that we may be also glorified together. [bold mine]
That is the basis of the entire belief for Latter-Day-Saints. We are children of our Heavenly Father and eventually we may become like Him, in ALL His glory.