It's not even that new. A professor was using a much earlier version of this same tech to steer his boat in the 90's. It was very easy to read left and right signals to control a rudder as a prototype.
There have been commercialized versions of this tech already. The Myo was Kickstarted in 2015 and then acquired by CTRL-Labs. I have one and that generation of the tech was still tricky to use effectively.