there is aim and there is weapon accuracy. any weapon is good if your aim is good but some weapons are more accurate than others.
Since DPS assumes perfect accuracy, bad accuracy on a gun makes it comparably worse than an accurate gun with the same DPS. therefore blish is even worse than the DPS alone would suggest
Blishlok is my most used weapon and it is definitely viable but highly reliant on head shots. I recently got an Aura card that has the Blishlok and gave it a whirl (I typically only put Aura in my load out for missions). It could just be a placebo but it feels different than when I’m using it with Sawbonez. It’s like Aura is shorter which lowers your crosshair centre slightly which throws off head shotting. Probably all in my head though.
For reference Blishlok has my second highest SMG kills per minute / highest accuracy (2.8 / 38.6% respectively).