I'm pleased to see the uptake of the CASA approved harness that we have used for so many years here in Australia, but little comment has been made on any of the current threads about where you secure the tether to the aircraft; almost as important as the rest of the deal.
Many moons ago (when Pontius was a Pilot) the helicopter of choice was a JetRanger and we secured the harness of the day to one of the pax seat belt anchors. I spent a bit of time and a lot of money having an approved anchor point made and attached to the rear bulkhead behind the pax cushion, removable for installing the cushion. It was worth the effort when a cameraman was secured to it during a wirestrike, there is little doubt that the pull on the normal seat belt anchor would not have stood up to the forces involved.
Later there came on the market a Bell part which attached to the bulkhead in the rear footwell and is 'handed', one each side for either door, to secure the cameraman's harness.
The Squirrel is now the generally used helicopter for camera work and again some regulatory oversight should come into play to ensure that any approved harness be secured to the aircraft by an anchor point stressed for lateral pull commensurate with a cameraman in any likely position during operations. Further, CASA approvals nearly always require that a harness wearer be in a seat with the normal seat belt on and harness removed from the securing point during take off and landing; this ensures that only one release is needed at any time of flight.
Points which should be added to the current emergency FAA ruling, IMO; and by any other regulatory authority controlling this sort of operation.