That's super fair - I think recovery and reburial is probably a respectful option. My impression is that our decisions about what to do with human remains often

That's super fair - I think recovery and reburial is probably a respectful option. My impression is that our decisions about what to do with human remains often relies on finding a living member of the family to speak about preferences. To go back to the titanic example - I don't know of any families who agitated to have the remains in the ship reburied. One of the ways this situation is different is that there would be no ambiguity about remain identification. > I don't think I would consider this a grave If by not a "grave" you mean not an "intentional burial site" I agree. But it would be a final resting place and, to the question I was answering ("why would people object") that's a thing that people care about being handled with the proper care and consideration.