Hum... guys? There was an interview with Yoshi-p, with a question about Dark Knight. Here is what it says :

"PSU: You recently made changes to the Warrior job that has caused some dark knights to now feel slightly less useful in the end game scene, with certain moves like Dark Passenger feeling much less useful. Are there any plans to address these potential balance issues?

Naoki Yoshida:
While we are always looking closely at community opinions on adjustments, the team currently feels that these recent changes have not made a largely visible disparity between the classes. Many players are tackling the Unending Coil of Bahamut (Ultimate) and the trends in strategy and party composition is also a big indicator for us as well. However, I do not think it wrong to say that the contribution warrior can now bring with Shake it Off is more visibly apparently when compared to dark knight."

http://www.psu.com/feature/34640/int...future-content