They are pretty good all rounders, the aoe doesn't mater much outside of a few game modes.
The main downside which has been mentioned is they don't really have a decent place in fractals since the meta is quickness, might, healer.
But honestly don't listen to meta, rangers have stances with soul beast which are amazing group buffs and they also have healable spirits with a 45 aoe ressurect on downed players. If you have another player doing quickness with hb, scrapper, chrono you can run this is CM.
The spirits alone are very strong for druid since you can stay in celestial form longer since it will charge to full in 9 second between modes.