The general consensus seems to be that Hotw is too strong. Granted Moonkin healing is strong, but Feral losing viable means of casting cyclone means that Hotw will have to stay because of how squishy we are.
I think one problem right now is that CC'ing the druid during this powerful cooldown doesn't do much because it lasts so long. However, what if the duration and cooldown of Hotw was halved? This gives the opponent better chances to be smart about cc'ing the druid, and also gives the druid access to this powerful CD more often.