Yes but it doesn't really work that way. At some point the real struggle ARE the horde nights and as such you need a specialized weapon to face the horde. If I'm gonna resort to using my AK I might aswell just spec into FORT and thus machine guns. The odd dude in the wild is easily dispatched with a decent sledgehammer anyways. Let's also not forget the AK is better than the pump shotgun in pretty much every area : DPS (when you account for reload times), effective range, magazine size... We're talking a T2 being much better overall than a T3. And the T2 double barrel is just a terrible weapon overall.
I don't want all weapons to be equal in all situations, but when your 100% close quarter strength guy has both less survivability, less raw damage output, less effective range, less crowd control/area damage than his closest friend the tank machine-gunner, the discussion isn't really about making everything equal but balancing stuff out in the grand scheme of things.
Honestly the double barrel doesn't fit the game and should be replaced by the pump shotgun as a T2, and a brand new T3 shotgun should come into play. And give the shotguns some uniqueness, whether it is AOE damage with more damage/more spread, less movement penalty when reloading, anything really. In my book it only has drawbacks right now, expect for a lower skill floor.