It’s indeed brilliant and, in my opinion, a completely new approach for difficult situations. Difficult in sense of limited casting room and stealthy approach.
As I am tangling myself not that seldom when experimenting all combinations of casts, I guess I will train it without flies first when training to do this rod tangles intentionally. It will need some tangles to bring it to practical use.
Take a look at sexyloops for the discussion about it.
Time is running... A little bit of work, a little bit married, fishing, hunting... What else?