I think you are correct. Anyone who is living (or may be living, but we are not sure) should be kept Private. On the other hand, to cite a newspaper article in the profile of the parents (who are deceased), seems fine to me.
Do you have any idea how the middle-aged children would react? Are you in touch with them? Would they like to be involved with WikiTree? (too many questions - LOL - just things to consider).
My sister was initially very pleased that I wanted to add her to WikiTree, but later, she changed her mind. Now she has been anonymized, per her wishes. If I had it to do over, I would not have added any living people to WikiTree (hindsight is 20/20 and all that).
Don't know whether any of that helped, but kudos to you for your concern for the ethics of it all. My best!