Remember, Lucifer was the first to challenge God's fairness. He claimed there was an alternative, a better way. He claimed that God's power was arbitrary. Love does something different. Love doesn't force.
Love lets people see for themselves, decide for themselves.
God wants us to love Him back for who He is. And that can only happen if we really do have free choice. And here on earth is where he began to tempt human beings into following him. Let the whole universe see what happens. Let all created beings see what happens in a world cut off from love.