Maybe that means you're good at the weapon. whoa
Still though if we're going to talk about weapons that kill in "0 seconds flat", every shooter in the game has an insane ttk. Look at a weapon like the .52 gal. It kills in 12 frames. Remember splatoon is a game that runs at 60 frames per second, so this weapon can drop a fool in a fifth of a second. And we're not talking about if it's point blank. This is a mid range weapon. The tentatek kills in 14 frames per second if you land all three shots in a row, but it hasn't seen a nerf to it's kill speed. Meanwhile tri slosher needs 38 frames to kill, more than triple the time needed with the .52 gal, and it has less range. Just to put that into perspective, You can react to a tri slosher trying to get the jump on you. But if a .52 gal lands both of it's shots you're already dead, you can't react to that.
To be fair, if every weapon that received "crazy kill counts" was deemed as "OP" or "unfair", they would nerf every blaster (Even though they take 70+ frames to kill someone if they don't land a direct hit), because they racked up a lot of kills, even though they can't paint, move, or do anything other than kill.