Probably so, it all has to be hard for the families. So far they are calling them "Presumed human remains" hard to know what that means, could just be a residue... might not be human at all... Not that it would make any real difference to the families.
Most of what I have seen appears consistent with a catastrophic implosion. However many experts believed the implosion would have been followed by an explosion, and maybe that didn't happen. The pieces I've seen look like quite hard material, not inconsistent with an implosion. And an implosion could have left recognizable body parts, but an explosion not so much. Either way death would still have been instantaneous, we are not built to withstand that kind of rapid pressurization.