Has Runaan's Hurricane ever been a healthy item?
The only time I've ever seen it utilised at a substantial/significant level has been to abuse an on-hit effect in a champion's kit. The item is near-never bought and serves no purpose during this 99% of time in which it isn't a FotM item purchase. It simply exists as one more thing to abuse at the expense of whatever champion is popularised with building it (i.e. the champion gets nerfed and not the item that, frankly, has no reason to even exist).

you are given one item of freedom.