Honestly. Holy crap, batman!
I've seen lots of youtube vids of similar, usually with smaller, less powerful drones. You'd think by now shrouds would be standard equipment. Venturi shrouds might even enhance the thrust.Kinda reminds me when I was on sea trials in Taiwan two years ago. We were 10 miles out from home port, when for some reason a videographer reached up to grab his high priced camera drone out of the air.
The props were not shrouded.
I'm not sure they ever found one of the fingers.