Dear Steve2,
Both the thoughts you expressed are new to me--very good and solid!
When I was with JWs, students used to ask why Jesus did use Father in the prayer (Mathew 6:9) and why he himself cried out before his death, "MyGod , My God , why have you forsaken me "? I really found it difficult to answer it, but was replying like caged parrot. They seemed not satisfied with the answer.
Now I know why Jesus used Father and God--because that is the we have to address Him! They are the acceptable form for Jesus, so be with us. God Himself said during transfiguration: LISTEN TO HIM.
Dear Eden,
Thank you for the research you did in connection with Rutherford and his enforcement of name-Jehovah. Very solid matter to consider!