I did my first backroll loops the other day, and was surprised how easy it was. Don't get me wrong I still had some wipeouts, but if you loop the kite late (low) there really isn't much pull. I'm also starting the backroll before starting the loop, I think that takes some of the pull out of it.
I'm looking forward to better wind to try some more. I want to try to keep my forward momentum going until the kite pulls me back. That looks more like the video is showing.