The problem is that they will not change the Raid Design right now, or at last not change to something that caters well to our toolkit.
1- Changing from burst damage on raid, back to more constant less spiky damage on raid, and bursty damage on tank would make fights really easy now that every healer toolkit has ways to deal with aoe damage.
2- Adding more movement causes class imbalance for healers and DPS's alike, some classes just don't work while moving.
The more movement you add to a fight, the more a hunter and warlock starts to seem a MUST have, and an Arcane mage, boomkin, even elemental Shaman worse.
The problem is that worse starts with -5%, but add enough movement to make us the best healer for that fight, and those DPS's will be doing half of the other DPS's damage.
3- Going back in design is a bad thing for a group of developers that took the head of the game in Cataclysm. Going back to the WoTLK model would seem like a failure.
Also the old model had huge problems too, and we moved away from it because of that. Healers were a mindless spam in most cases, instead of having options and complete toolkits.
It makes no sense make to game worse to everyone just to help 1 class in one spec.
That is why i think we need a rework of some sort, but not a numerical buff, or a pure increase in HPS. That would be gimmick buff to make druids happy without solving the issues that will arise again in the near future.
That is why i made suggestions that either tried to solve the problem, or added us a utility so great that would make guilds bring us with worse HPS, just because we had that powerful ability.
( Like rshamans now days, their healing is kind of low, but HTT, Ascendence, SL and reincarnate are a too powerful utility toolkit to pass, so guilds love shamans in their core, and shamans can feel like they are contributing when they use such powerful abilities to save the raid from a wipe. )