The 'Lighter' Side Of The Force
This is an excellent theory, that is much cooler than a simple good vs evil one, but Lucas stated that the prophecy of balance in the force was about light over dark. That the dark side was an unbalancing of the force. I think you should also consider the Clone Wars episode involving Father, Son, and Daughter. A lot in there about the prophecy and light vs dark.
Who's the narrator? sounds really familiar.
This is not really news. Clone Wars S3E15 explains this whole idea! There's even a yin-yang!
So without the Dark Side there is no peace?(no balance)