Yes, quite possible.
Good thinking on your part.
Probably the reason there aren't more of these finds (besides the fact that most such things are found by accident) is precisely what you said -- leave the fallen where they are (minus any valuables, including any useful tools or weapons) and leave the bodies for excarnation by scavengers.
"Dismembered limbs were likely taken as trophies of war." -- orrr, maybe the scavenging had begun before the survivors arrived to bury them.