I'd hope ZOS might have acted on some of the PTS feedback on stamina costs but apparently they did not - as a DW NB it took a good few months from last year's launch before much noise on the forums and gradual balancing left us viable across content.
1.6 has simply wheeled the clock back and I am not sure why this has been done...
The problem is not in the abilities themselves but in the greatly increased drain on the stamina pool from the greatly increased costs of non-ability based actions, this is compounded because additional abilities now have to be paid from the stamina pool.
I have got about 20k stamina at VR14.
A roll dodge costs me around 2.5K, a break free costs me about 4k and a single block costs about 2k - I based these on quantity of stamina before and after performing an action and grant that these are close approximations not exact numbers.
However lets imagine a standard melee... I get attacked and block, if they use an ability I maybe have to break free, they pop bats so I have to roll dodge once possible twice to get out of the area. At this point I have burnt over half my pool and have little left top actually attack let alone block, dodge or break free again.
This is a very silly way to expect people to play - so is it back to destro/resto for everyone or is there a sensible way around this stupidity?
I have never supported the 4th resource bar option before but from brief play in PvP and PvE this is a brutal hit on stamina resource management if you actually wish to play a build that is based around using stamina abilities.
And for those of you who mock I will be running Mass Hsyteria, Ambush and Soul Tether and you can see how long your pools last getting out of them... muhahaha!