Accepted Double Stab needs to be Buffed?

Forgive me for being new to the server, but this is something that always baffles me and this is the same thing I talked about on the other big server... It's already known in the Maplestory Pserver community that Lucky Seven outdamages Double Stab to such a degree that Double Stab is ignored altogether for the "Sindit" build as it's stronger and safer/cost efficient. Even the Bandit guide "Blu's Full Guide For Shadowers" suggests the Sindit path. So why is Double Stab left in such a weak state for newer players?

I know some people might go "Well Chief Bandit has such a good 3rd job via Meso Explosion" or "Shadowers are broken with Meso Guard and their good damage" but the former requires funding and ignores players who might not want to use Meso Explosion (and save their hand). And for the latter, why does end-game have to restrict a class's 1st/early 2nd job so much? You shouldn't be punished for trying to play a Dagger pre-dit...

As someone had said to me before about Double stab:

1. [Bad] damage
2. More melee than warriors slash blast/strike due to dagger range
3. Becomes obsolete rather quick on 2nd job

I don't think it'd be wrong to do any of the following:

• Increase Damage Dealt to be on-par/slightly above Lucky Seven
  
• Make it have minimum damage dealt (Mastery) or change formula
• Allow it to hit two enemies