I'm absolutely OK with the changes to Nightblades' Surprise Attack. Having Defile and Fracture attached to Incap and Surprise Attack, skills you are going to use anyway in any build, didn't make much sense. It was just a "free gift" to the Nightblade Toolkit. Now things are in an healthier state: if you want these debuffs, you will have to build for them in some way, making room on your skill bar or in your sets in order to earn them.
That said, I would like to know if there are plans about removing the same debuff from SubAssault, which should deserve the same treatment imho. This is a skill that any StamWarden is going to use anyway, in any build. Having Major Fracture / Major Breach attached to this skill it's just a "free gift" to the Wardens, creating an inconsistent approach comparing the two classes (we could say the same thing regarding minor berserk, comparing again nightblades vs wardens).
p.s. I have both a Stamina Nightblade and a Stamina Warden, wich is my PvP main at the moment, so I would be affected myself from this nerf. It's just that I would like to see some coherence in the way the class are treated compared to each other.