I think there is a fundamental issue of perspective here.
A WoW druid is not what you think a druid is.
It's obvious when you think about a druid you imagine a forest hobo who talks to animals, the most basic interpretation of what a druid is basically in general fantasy.
I think we have examples of that in-game as well.
Restoration druids are supposed to fall into that category actually.
Balance Druids are simply different, which is good because its unique.