Some bioarchaeologists are staunchly opposed to returning bones to the ground. Duncan Sayer, an archaeologist at the University of Central Lancashire, writes, “The destruction of human remains prevents future study; it is the forensic equivalent of book burning, the willful ruin of knowledge.”But that does not exclude trying to find creative ways to accommodate the wishes of indigenous groups and (more cogently) direct descendants who feel they have a stake in the fate of the remains.
Another post on this subject, in which I give my own views and suggestions in greater detail, is here.