I actually quite loved that scene. I haven't seen it before and i like that it builds up the history and relationship between the witches. I especially like the idea that she could have given the slippers to the witch, and that good with always defeat evil. It hints that they might have once been friends, and that the wicked witch will eventually be melted by the goodness of dorothy
I never knew how amazing The Wicked Witch of the West and The Good Witch of the North can tap really well for a tap battle during the play until I saw the video.