Yes and no. They buffed horrify and it actually has the same effect so u can eventually round robin Horrify without Tiklandian and pretty much do the same thing, so I'm not sure why would they nerf it. And that's the case with a lot of skills in many classes when they are multiboxed. U can round robin CC skills and have perma CC or close to it. Add CDR and u can cast endless Blackholes and Novas with Wizards, or have endless Ignore Pain on Barbs. Besides this item has been ingame for a long time now and is not used much. Keep in mind this won't allow u to faceroll T6, just add survivability. U still need to kill stuff at a decent pace for it to be useful.

They didn't nerf Fire Barbs that are literally facerolling T6 for weeks now and that's like the main/only build Barbs are using, and they will nerf this item that is not even a main build? I doubt it, but it's Blizzard, so who knows. I hope not. The build is solid and fun and is not exploiting any bug or problem in the game. The helm is working as intended according to the description.