The point is it CAN hit 6 targets, and as my post said, even if it's only hitting 3, it's doing more damage than the Ballista can. And because it's a save, and not an attack roll, even for those who save, they still take half damage, so some damage is done every turn.
I don't understand why people are arguing with me because I'm pointing out that the Turret can hit 6 targets. Nobody says "Yeah, but the odds of hitting a lot of people with fireball are so small, it doesn't even matter." Fireball can hit a 20 ft sphere, so they can hit lots of targets. it doesn't matter how many they can hit, it matters they can hit a lot of them. The turrets do 1d8 damage to up to six people for each turret. They don't need an upgrade. They're an AOE attack. It doesn't matter that "You'll never get six people lined up". It matters that it can hit six squares at once. The more people are there, the more it can hit, up to six people. AOE attacks are a thing in DND and most people think they're pretty good.
Sometimes I feel that people argue with me just to argue.