Due to the PVE focus of the game, PVP can't be balanced.
And due to the PVP focus of the game, PVE can't be balanced.
We can't have both and also have balance.
Once people realize this, we can move on from making a huge deal of it.
Adding new classes to the game gives it a new flavor, along with more stuff for people to do, and peak their interest in the game again.