I think you've got it a bit confused. It being so low damage that it's basically a water gun isn't, or at least shouldn't be assuming anyone on the balance team has a functional brain, an intended design.
Fatshark just absolutely sucks at balance and is perfectly fine with leaving weapons in the dumpster for very long periods while being blissfully unaware of the reality on the ground.
You can have it do "less" damage without making it worthless compared to alternatives. One of the ways you can do that is with low weakspot multipliers (which it has). Or slightly lower baseline dps with perhaps more ammo efficiency to make up for it.

ok i guess










