I think the point is that IF it deployed accidentally and the result is a bent helicopter but live pilot ....... You balance that against the ones that could have been saved by in flight failure ....ie nearly all the turbulence related fatalities in Robbos could have been surviveable . A bit like the cirrus system I think this is the biggest development in helicopter safety there could ever be and if it comes out in my lifetime I want one !!!!!! The question is not if it happens but when .