Hi jcjeant,
If you live in the USA and watch the early 1/2 hour evening national news, you agonize through 6-8 pharmaceutical commercials in the non-political season. The first 15 seconds extol the benefits of the product, the next 45 seconds is a legal disclaimer listing all the things that could go wrong up to and including death. It is what is known as "legal speak". It protects the pharmaceutical company from damages should you die taking their product, because they told you so. So the FAA and EASA develops wording (legal speak) defining "unsafe condition" or proposing a PAD for a condition for which there is no 100% remedy, now or in the future (our lifetime). This is legal speak to relieve themselves of responsibility should and when the next event occurs and at least one person dies. It is the way things work these days. Lets say you are zooming down the unregulated speed section of the autobahn in you BMW or Porsche at 240 KPH and you suffer LOC. Your estate will not be able to sue the government as they somewhere have a disclaimer (travel at your own risk). However, your estate may be able to sue BMW or Porsche for designing and building a car that goes so fast thereby causing your LOC. Such is the state of the legal business in the Western world. If either the FAA or EASA were really concerned they would have addressed this problem years ago, in fact they are not because there isn't a solution. A substantial part of my career was spent working with lawyers, supporting lawyers or working against lawyers. I know how the system works, at least in the US.