Guitarpima
The R-mix could also be helpful as an analyst by showing where things sit in the mix and help isolate things for a clearer mix.
To be honest, that was one of things I first thought as I watched the video. Then I realized how much discipline it took me to trust what I hear rather than what I see. So for me, in that application, it would be a bad thing. YM, of course, MV. However, it might just be the best thing since sliced bread. We'll just have to wait and see.