Fiesta said..
This insurance issue has the potential to really change non professional sailing. I think there is potential niche market for an insurer, for yachts on swing mooring where the necessary risk reductions are in place - i.e evidence of mooring services and robust deck cleats confirmed via survey etc. Its not that hard to have sensible checks for deck cleats, moorings etc, reduce the risk and provide coverage.
The issue here is all the old bangers on moorings that are rarely sailed and have zero maintenance or serviced moorings - increasing everyones risk.
Not really.
The old mooring minders are probably not insured at all. I have seen a mooring failed only a few weeks of being "professionally" serviced!