Was Hero Nerfed?

Several of my friends in my alliance and a few others have noticed that our Hero i-frames are shorter; we are getting hit while the perfect dodge tone plays. We are also noticing reduced DPS and survivability. Was Hero nerfed during the last patch? If so, SEGA, please change it back. I love playing my Hero and worked very hard on leveling and gearing it, only for it to be a wasted effort. If this is the case, please reconsider.