These corpses specifically was both out of the beaten path and in an area with mobs that were far from difficult, meaning a whole bunch of players simultaneously decided to log out in this specific area, there was an impromptu low level raiding party, or it was somehow intentional.
Though then again, i might be basing my assumptions too much on how the names of the bodies were pretty unimaginative, even for PTR.
Things like Zandalaritrol wearing full heritage armor with fitting weapon. And things like that.