>>507637001
>Haven't they been doing that for a while?

nah they where flying quite close to the ground less then 100m, the usual tactic to evade more potent anti air systems.
But since piggers ran out of them and switched to mobile fire times only armed with machine guns, they were somewhat successful intercepting this low flying drones, now that they fly at that altitude, they can't be engage by them anymore and they have to switch back to intercept them with missiles or and point defense range with AA cannons.

Which will drive cost up again for piggers. So they are "mass producing" this "interceptor drones" (if you can call 3d printed frames "mass produced"