To quote granny - "bluelippy is right it was a non event-aircraft wasn't damaged".
WTF?? If an engine spooling down while connected to a 100ft line which in turn is connected to a load which is perched on top of a "conical shaped hill and very steep drop offs each side" is a non-event, I'd hate to see how serious an incident has to be before it is considered "an event"!!!
In fairness to Granny, he followed with "Had it occured a few seconds later it would have been very nasty", so my interpretation is that this was an extremely serious incident & multiple fatalities were only avoided by the actions of the pilot after the engine spooled down.
I worry that the tolerance level to risk is increasing as the competition to get onto the gas bandwagon increases. This is directly proportional to the quantity of widows increasing.