See a video of this test at https://www.instagram.com/agileaircraft/
The advantages of this design are
1) Extremely quick response. A conventional drone must spin each rotor faster to get more lift, for example to counter a random wind gust.
A drone or aircraft with far quicker response could be used in new ways, such as very close to structures in windy conditions.
2) Low vibration in forward flight. Each lift-rotor blade generates more lift when advancing than when retreating, but in a 5-bladed design, the forces cancel.
3) Low noise. For the same lift and diameter, 5-blades run slower and consequently quieter than 2-blades.
4) Auto-rotation by default. For safety and simplicity, the default blade pitch is negative when not powered. The blade pitch range is readily adjustable to suit application requirements.