What are you going to do about it? Bitcoin is a new kind of an asset class, and a lot of people are going to die with their keys, either due to their neglect, or their not knowing or even their inadequate instructions to heirs.
At the same time, in bitcoin there are options to hold your keys yourselves or to keep them with third parties, so being able to hold your keys yourself can be quite powerful for both yourself and for passing your coins to others whether during your life time or after your death.
I am not going to argue with you about what should be done, because those kinds of arguments hardly make any sense, and people are going to do what they will with the power of bitcoin, and some people will profit stupendously, and others will end up making mistakes that they had not realized to be as BIG of mistakes as they ended up being, and one of those mistakes may well end up being not having adequate systems in place to pass bitcoins along after some kind of a brain damage (or similar incapacity) and/or death.
Obviously @jay nothing can be done and should be done at this point other than sharing the knowledge. Most people will suffer this as a result of not getting the right information or neglecting instructions. In either way round there must still be those who their investment will be considered as lost Bitcoin but I hope before then this knowledge should be widely spread let it be they suffer as a result of neglegence and not ignorance.