OP I am with you. Our previous encounter with a Dveger in the form of Haldor the Trader is friendly an option to maintain the friendly makes far more sense than what we have now to me.

But as I aid in another thread just now We are speculating on the Logic of a Fantasy based on a Myth...

All I can say is "its EA" and hope the Devs find time to address some logic fails like this based on thier own previously established in game Lore and experience.

Dverger love gold I have gold, Dverger we know will trade, why not allow us to trade for sap extractors etc Or Soft tissue or well anything> If you wanted to avoid killing them that is?