It's better than Frostshock too. But then again, Shamans have one more thing in common with Rogues. They aren't CC classes. Rogues have one single purpose in a raid or instance: DPS, and some DPS duties coupled with the dealing of damage. A Hunter on the other hand will rarely outdps a similarly geared Rogue, Mage, or Warlock if we assume similar skill-levels. Which means, we need something to counter our lack of sheer DPS. That means CC, especially if we are competing with a Mage.
And that was just taken away from us. A Rogue can compensate for their lack of chainable CC with heavy DPS. A Mage can in fact chain CC and DPS heavily without having to think of Cooldowns, range, target and resists.
We can't do any of those, in comparison, which means we needed doubletrap to stand out as comparable.