I used it once when it was new, then didn't need it either.. normally I execute things by autoshoting at the tile where their body lays, that feature of oxc is quite nice. Maybe since melee might be able to destroy terrain, it could also work on corpses? (If there's no walls or object, target corpse)
The TU cost associated with picking up, executing and dropping is just too high compared to the shooting option. (Snapshot from a power mace or hammer also works really well, hence my asking if melee could also do it this way with the new terrain damage implementation)