RVDT,
I guess if you snagged the rope surrounding the pool with a bambi it would have done pretty much the same thing really.
But from what I have seen, some operators are not fully aware of the limitations of using a Bambi. It states that if you purge the valve and pull it as far out as you can, and at the same time pulls the bambi to full aft stop, the clearance between the rubber valve and the tip of the tail rotor edge should be at least model 6 inches. If less than 6 inches a longline is to be used.
But from the pictures, it looks like it might be a different manufacturer than SEI, as all the bucket I have seen has BAMBI market on the sides all round.