By active cyclic pitch control of the blades during the rotation, as mentioned on various topics, Cyclic pitch control for Rotary Airborne Wind Energy Syst. using a rotation compensating slew plate for example. During operation this rotary AWES is tilted as some other rotary devices, and the angle of tilt (and as a result the elevation angle) is dependent from the average pitch angle of the blades of the main rotor during rotation. So another device (which possibly could be useful when there is no pitch control) is not needed.
That said, as presented on the video (0:14), the pitch control of the blades seems to be collective for this rotor drone. At 1: 38, the shown mechanism seems to include a collective control.
Individualized cyclic control of each blade is required for adaptation to a rotating AWES in order to eliminate the need for a pilot kite.