Apparently feminist "theologians" or commentators know much more about the mind of God than did Jesus Himself.  
It seems a silly exercise to me to change the lyrics to match one's ill-conceived concept of a gendered God counter to all Scriptural and Doctrinal references to Him as Father, King, etc. despite the fact that the Church has always understood that Father is not a gendered identity but a relationship.  It's an exercise in idolatry.
I will say that WRT "Holy God We Praise Thy Name" that goddess fits the measure better than "Go-od", but in the second verse you are still left with the problem of making a two syllable word stretch for three notes; "Fa-ah-ther" and the proposed "Mo-uh-ther".