This poll is asking the wrong question.
It's not whether the class was nerfed - clearly, it was. It's what the current state strength of the class is, post-changes.
The question should be, given the changes to DKs in High Isle:
1. The class is still the top class in PVE / PVP
2. The class is still top 2 in PVE / PVP
3. The class is still top 3 in PVE / PVP
4. The class is now in the bottom 3 in PVE / PVP