Well that's disappointing. An LFR fight that has genuine mechanics involved and you nerfed it because people weren't killing it on the first try every time.
They didn't nerf the problematic mechanics, though. Maybe healers will be able to heal through the crush damage long enough to get a kill, but I sort of doubt the health was reduced enough for that to be viable.
None of my groups had a problem with the boss gaining fury, but maybe that was problematic in some groups. All wipes I encountered (which admittedly was only 2 across 2 characters) were due to people triggering crush by standing under boss or the kiter moving too fast. It's less kiting and more rp walking.
I probably won't get a chance to try nerfed boss until next week, though. It was boring enough before the nerf, I don't think I can stay awake for the nerfed version when I'm getting no reward.