It's a warrior GUILD quest, because the quest giver is a member of the warrior guild and located inside the warrior guild hall. It was never a warrior exclusive quest.
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Only really good if you're looking to make a fashion statement by having a complete set of Bloodforge armor. Dwarven Ringmail Tunic from Crushbone has same AC and resist buffs. Foremans Tunic has 2 less AC (I think) but has better buffs than scarab breastplate and is weightless besides.
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If you were me and I were you, would we still be friends?
Scarasb bp has better stats and is incredibly easy to get. Not to mention that banded is much better, and is cheap. Why would anyone pay 20pp for this?
The Helm is the only piece that gives you a bonus. Having the whole suit just looks real cool and let people know you worked real hard, unless you were "twinked". :)