well for a 2 traits set to have a weapon damage bonus as its third piece set bonus it's pretty good,most stamina dps players use it only for the weapon damage bonus,and that's with 2 traits,i myself being a stamina bosmer have never even bothered looking set bonuses of 6 or 8 traits...so i dont really think it needs to be buffed
The fact that you can't be bothered to look at your other choices is hardly good reasoning for not buffing a seriously underpowered armor set. Although yours is probably closer to ZOS's reasoning... They can't be bothered with fixing, updating, and expanding older armor sets so they're viable options from L1 to Vr16.