From your second link on the Gulf Stream tragedy.
"Mr. Thorns, 63, a carpenter and resident of Mashpee with close Island connections, was at the helm of the Emma Goldman when she rolled and lost both masts and engine. Mr. Thorns, who was wearing a lifeline, was caught in the rigging, injured and thrown into the sea. His daughter and Mr. White were unable to pull the badly injured Mr. Thorns back onboard."

You have talked about the problems with jacklines in the past. I remember a few years ago on the ARC, a crew member was tethered to a jackline, was swept overboard and under the vessel. The remaining crew members couldn't get him back on board quickly and he died.

The possibility of being swept under the boat tied to a tether is a fear I have and I now tether myself to the center of the boat while going forward. The tether is very short making it impossible to go under the boat. It causes some restrictions on movement but well worth the hassle. While in the cockpit at night the tether is really short. I can't go anywhere unless I unhook.