new remains

Maybe I am missing simething but why are the families of 9-11 victims upset about the finding of new remains so long after the event? I would think they would be glad that something has been found thatmight be a connection to their loved ones. It isn't a very diginified palce to be laid to rest, under a manhole cover, basically a sewer, but at least they were intact bones and as such, could be used perhaps, for dna and ID. Then there could be a real burial. Why is this a bad thing? There are still finds being made even today from WW1 and 2, because of the extent of the death and destruction. I would not be surprised if parts turn up for decades to come. Of course it's grisly, the whole business is.