I personally think that the archaeological value of human remains is equally as important as their spiritual value, and I think the archaeological insights we can gain from them contribute to their spiritual value.
I think that the spiritual, artistic, and archaeological views of the remains should be given equal consideration. This implies to me that a compromise solution is the best one.
But in any consideration of the responsibilities we owe to the dead, perpetuating (or restoring) the memory of them is just as important to many people as respecting the integrity of their burial, and I think archaeology contributes massively to restoring the memory of the ancient dead.
I also think that there are other issues we should be worrying about right now, like climate change, the war in Iraq, nuclear proliferation, and so on.