1. Nobody really needs a automatic ballista. It's a nice to have deco thingy implemented for style. Or to play around with it and see what stupid things one can do 😎🤪
2. It only shots if it's loaded so I have a arrow chest next to it and if there is a raid and I feel the"need"to play around with the ballista I load arrows into it.
3. BUT till the ballistas get rid of a raid I would have killed the enemies at least 2 times by hand without wasting ballista bolts ...🤪
4. But after beating midlands there was never ever a single situation when the ballistas or the traps were needed.