Update
Since the day before yesterday the kid has gotten the fingers reattached, initially only three had been so, but a fourth showed up on a roof bldg. Latest versions say he jumped as he waved, and the helicopter had just shut down the engine.
Still seems high but anything can happen, sloping ground, incorrectly positioned cyclic, etc.
A few years ago a pax was hit in the head by the rotor of a AS365 Dauphin, now that is high.