Interesting but I am skeptical. That looked like about a 20 second flight with the footage repeated several times. Also I didn't see enough batteries on board to put out that much power for that long. May just be me though.
Only thing I dispute about those units is, with no auto rotation abilities, as in a helicopter, a short in the electrical system or batteries dropping out, ( as lithium batteries do at times), it would glide like a chrome crowbar. I've done some crazy things in aircraft in my day, but to fly one of those things over 4 foot above the ground would not be one of them. Sorry.
It looked like so much fun but then reality began to rear it's ugly head.
One of the oldest gliders I have flown with much less to go wrong.
https://en.wikipedia.org/wiki/Slingsby_Kirby_Gull
I have never flown in a rotary wing aircraft but I do know someone who owes his life to auto-rotation. Said it was a very hard landing but he could walk away. He was ferrying a helicopter across London when the engine decided to stop running. Turned it into a 4 man parachute.
David