That's wrong actually, it would word exactly like Heart of the wild in the way that when a druid uses heart of the wild, it can be a DPS cooldown because of how it works, or it can help with healing, so i think the OP means it in that way, that you can choose to heal or damage, which is the same as druids because using HoTW can very often be a DPS boost
Edit, My thoughts, I'm not sure i would like it so much, the two classes i play at 90 are Druid and Shaman and has been the two I've played end game for many years, I think it would be nice to have a more reliable assistance technique for Shamans to heal, as they can Tank for a short time, but healing is very limited