What a terrible loss!
A population that knows the spirit can heal or harm the body, so different from the medical machine of today forcing substances into every body on earth.
A population that does not regard politics as necessary.
And kudos to the linguists who made the connection with native Americans! It seems that much more than just the language is in common. When the Kets are all gone, they will live on in some way among us.
Everyone chooses their own road.