Hrm... nah, I don't see the point to Shuriken even if Raiton causes clipping.
There is no more Dripping Blades nor Slashing debuff. In a world where it was passively buffed in a 30% and was still weaker than a normal Raiton, I see no reason to Shuriken over Raiton other than having to hit something outside Raiton's range.