Well, I play a warrior and have been for 5 years now, tbh I gave up reading halfway through the opening post, I wasn't sure if it was a complaint about losing WW to make warrior's damage go up or a genuine worry that fury warrior's are losing what makes them ravage and reckless.
Although you class whirlwind as the move which defines a fury warrior, imo I would say that is bloodthirst, calling that a move which just gives you a bit on health is like calling mortal strike an ability which just reduces healing a bit.
I see the change to whirwind as a good thing, if your full rotation doesn't have to be paused do to adds spawning on a boss or breaking crowd control then, in the end it is a dps increase rather than a loss, you seem to be making the asumption (atleast it looks like that) that warrior rotations will be exactly the same as they are now, which ofc isn't the case.