The lens through which we must view DRK when discussing its balance and problems.

[TheCount]

Same goes for double war/ double pld since those debuffs don't stack either. What's your point? :/

My point is that it would be even more useless than those instances, since reprise can't be reliably kept up. The only good point about it is that it stacks with other damage debuffs.

If it isn't clear yet:

Let's assume you have a double war. You won't be able to benefit doubly from it but at least it can be kept up as much as they want.

Now let's assume you have a double drk. Not only is it impossible to keep up for them, one can't even apply it to begin with because you need a parry for it. So not only can't they stack with eachother obviously they also can't reliably keep the debuff applied for the life of them.