First off it's a general belief among bombers that OOO shouldn't change it the way they are.
However I'll admit hiting enemies with all the shards is OP. How to fix this? Make the shards deal drasticaly less damage, however accumulate more damage as they travel. Sorta like the polaris, but different. I'm not saying make a polaris bomb.
How about when the shards reach their maximum range, they detonate, but hitting something beforehand breaks them. This would be useful with a mist bomb, you hide in the mist, and ring explosives around the edges. Launched explosives, but still like bullets, not like blest cube goop.
Also you should be able to tilt the intire bomb pattern. However your crosshair should be inbetween the lines of the two shards nearest too it, to pervent making it handle like a gun.
So shard shoudlt multi hit... what about calibur or worse, FoV.
Hell, they nerfed Dark Retribution since it mowed down RJP.. FoV has been doing it for ages and not a single nerf (as if the chances of burning stops people from spamming charges).