I don’t think accuracy bonuses affect the kind of firing pattern such as the ones from Omen or Flakker as the extra pellets position should be just an offset from the main projectile although it does make the central pellet more accurate (e.g., sniper Omen).
Reload time wise, alone it’s capable to make torgue reloads not-shi†.
I suppose the lack of popularity comes from both how close-range focused the psycho is and the popularity nervous blood.
ps.: For a melee-centric mania-hellborn it also has the utility of being one of the few ways to inflict self-ignition during rampages aswell as making the axe’s saw glow red wich is on itself almost better than Sal’s whole Brawn tree.
pps.: hellborn Omen users like @BookEmDano should probably know more about the accuracy effects on the firing pattern as I certainly don’t, given how little I shoot compared to melee.

