As stated in the video, there is “No roll control” because of “Fixed bridles”. But there is pitch control. Indeed this device works like a rotor and is a rotor. And a rotor (for helicopter for example) is controlled by the pitch (including collective pitch) of the aligned blades, and not by the roll. So there is an active control.
Like any controlled rotor, lift is ensured by pitch control. So there is no need for a lifter kite. And takeoff could be achieved and easier when the two blades are close each other.
It is an extendable rotor. There are two rigid blades which have a low aspect ratio, and whose shape is very simple.
It could be used in yo-yo mode, but also as torque transfer device in a simplified version of the The Pyramid, perhaps as flygen device with secondary rotors settled in the respective external wing chords.
It looks like a brilliant idea and a preliminary achievement. We wait for the sequel, or we make it happen.
About “Passive Cyclic Control Device for Helicopters”: