The tree of life buff changed  :?  What I want to know is, does it still stack?

If it does, the MT group will get the druid(s) now to increase the healing done on the MT.  That leads me to believe that the ideal MT group will be:
MT, Tree, Tree, OT or Shaman, and Lock.
or even better  :wink: 
Bear, Bear, Tree, Tree, Tree.

Also, there is quite a bit of people screaming NERF DRUIDS at the moment because their DPS and Tanking are in the same talent tree, and Beartanks as MT can actually be near the top of the damage meter, unlike protection spec Warriors or Pallies.

The reason for druid uberness?
Getting people to play the least played class in game, and show the actual value of  hybrid classes.