I am sorry but it looks like you guys have no clue what your doing as far as balance goes. You have destroyed the utility out of the DK and left the banner and DPS alone. All you have done is ruin any spec but Dress and stick DK is all but a useless class now in PVE other then a banner spammer.
PVP people die to DK's because they are in experienced and have not figured out the counters to them. The Dk used to be one of the playable Classes in Heavy armor with SNS. It provided good utility and field management in PVE Vr dungeons. now the class is just lame it lacks any individuality it does everything poorly except banner spamming. The sorc tanks better then Dk now across the board. Ive completely lost faith in your ability to manage, balance or change this game in a positive direction.
If you were going to balance the DK at all you should have reduced its DPS and increased its utility not destroys its strengths and increase the exploit build . Just the simple fact you left the NB broken for so long, and left stmamina issues so extremely broken. And your fix was to make a one set fits all stamina builds with hundings that never worked shows the hot water your balance team is in.