And regardless, the issue now isn't lack of abilities but rather meter cost for switching stances.

The cost of going into deliverance from defiance is the main issue. If they smoothed that out, make going into deliverance free, making the cost a flat 20 rage, or lower infuriate cooldown to a flat 30 secs from the trait, the job would already feel much better.

I fact, I'm willing to bet that they'll do one of the above.