Is it really rewarding to play tank/heal role?

[LeoLupinos]

Tank and Healer are the most difficult roles to play. The question is: With all the self sustain nerf and damage nerf to tanks, will it be rewarding to play as a tank?
We lost so much complexity, this is a direct impact of the reward of being a tank (difficulty)

DPS seems far rewarding to play, they have self sustain now with bloodbath, high damage, so they can solo things fast, and the role is the most fun and complex.

Tank doesn't need to be WAY behind a DPS job in damage and rotation complexity. What about PVP?
If we aren't in the tank stance, we are a DPS. Cause we lose Def and gain damage, so we must do damage!
If the healer isn't healing, he's a DPS too.

We all need to do fair damage in the DPS stance!
But we do half damage...

Why do we need to have THAT MUCH of low DPS?

If I'm wrong, why do DPS is highly more playable by players than healer and Tank? Cause it's easy to hard, fun and complex.

There's 2 new DPS jobs and what we tanks and healer get? A BIG HAPPY NERF.

Really, I just have no reasons, out of intant queue, to play tank.