I think it is a fair statement to say that Blizzard has done little or nothing to resolve the Balance's trees main weaknesses.
In short here are some of the big problems with Balance:
- Bad synergy / flow
- No unified design for things like mana return or DPS scaling
- Too many "important" PvE talents to possibly take
- Many weak talents
- Questionable raid utility (*assuming 1x Resto and 1x Feral Druid in the raid)
They promised yet again that Balance Druids would receive love. But in reality they've spent very little time developing this tree.