The main reason for taking DW has never been more threat though, as the threat itself from the talent is minor. It certainly isn't the talent that makes the adds stick to you, not if your dps'ers know what they're doing atleast.
DW got interesting in Naxx because it moved us abit closer to the other tanks dps wise - and before the nerf perhaps even higher than the others.

I would certainly be able to tank effectively without anything in arms, but the only thing you gain from fury as such, are tool that other classes tend to bring. So unless you're going with a flawed setup, you might aswell go for more damage.