These aircraft and crew members were never really missing. The US Navy knew where they were,and even back then they had the technology to recover the aircraft and the bodies. They didn't because there was a war going on and they had more important things to do.
When the war ended,everybody was too excited about the war ending and going back to their families to worry about the remains of the already dead already being "buried at sea". So they just remained there until now. They no doubt have empty caskets buried under tombstones in their hometowns,and everybody that knew them personally has now also died.
I see nothing to be gained from bringing them up to rebury their bones in the ground. It's certainly not going to make a difference to them,and everybody that knew them is also dead,so they won't be excited about it,either.