As everyone else said,Incapacitator is useless.
I don't think I saw more than 2 people using that thing.
It has a really low range and really low damage potential.
Maximum ammo of 70 novas can inflict much more shield damage+it can inflict hull damage and can be used from safe distance while with Incapacitators you have to get really close to a capship for torpedo to actually start tracking.
So yeah,it indeed needs shield damage and range buff