EM - wow! All persons rescued are highly likely to be severely injured or killed That's not what the Dacon website says.
Notice on their website it doesn't show a live human being rescued - not surprising since being rolled down the scoop until you hit the side of the vessel and are then rolled up and into the vessel looks like a pretty good way to injure someone who was OK and worsen injuries of anyone who wasn't.
With more than one person in the scoop it would get very dangerous.
I think that scoop must come under the heading of 'last resort' rather than 'great way to rescue people'.