So, I was redoing the Marauder quests in order to get Butcher's Block and Tomahawk, and once I was finished he was offering the Warrior Job Quests, despite the fact that I have the soul crystal and all of the abilities already (unlocked them in 1.0).

I'm hesitant to redo them, I'm not sure if that would give me a second Soul Crystal, and if that would break things. Anyone else running into this? Is it a bug? Is there actually a good reason to redo them?