They are mowing them down en masse though. The reason more haven’t been killed is because they have shelters and tunnels to protect from the strikes. They have leveled whole villages, apartment towers holding hundreds of people, and struck routes specifically designated by the IDF as safe avenues for people to escape. The number killed is likely much higher than the reports we have seen, like after an earthquake or other disasters there are hundreds of people labeled ‘missing’ until they are more certain they are deceased.