The dagger was identical to the Stone Guards one prior to 5.1, ppl complained like crazy so they added the crappy sea weed effect to it. Its pretty bad that the sha-touched dagger didnt get any proper atention.
Well, the point I was trying to get across were that these weapons are supposed to look very unique and different (at least I can only presume that was the designers philosophy on them) in comparison to all the regular weapons. All of them are clearly, but the dagger - which was simply a re-used weapon. They had a chance to change the poor decision of giving us just another re-skin of the Vaults dagger, but simply just sloshed some crap on the end. 10/10 for laziness, but apparently GC just mentioned in a tweet that they have been having discussions lately that they might have made Rogues overpowered in the 5.2 ptr... whether his words bare fruit is another question entirely.
Funny fact is that you guys manage to complain about pretty much everything, diluting stuff that really matters (such as the lack of usefulness and survival of the pvp rogue) amongst dozens of pointless complaints.