Originally Posted by
Ophannus
I think the point of these weapon skills are not to be the strongest, most damaging but rather to be utility weapon skills that either provide a unique enfeebling effect(Crit Evasion Down), restore MP(Entropy) or provide very good damage for jobs that don't have the unique weapon skills available to them(Realmizer for jobs that can't use Hexa Strike, Stardiver for jobs that can't use Drakesbane, Requiscat for jobs that can't use Vorpal Blade or Atonement). For the powerful/strong weapon skills, see: Relic/Mythic/Empyrean. Some of them are slight upgrades (Dagger/GS/GK) or are situationally useful like H2H.
Keep in mind these are not JOB SPECIFIC weapon skills so they were designed with the purpose of being broadly useful to all jobs who can use the weapon. The jobs that specialize in said weapon have more damaging weapon skills probably from above state Relic/Mythic/Empyrean. These were meant to give good WS to jobs that use the weapon but can't use those unique WS while at the same time providing something unique for the jobs that do specialize in the weapon.