If you apply reraise and other similar ideas, it hinges whm on the idea that they are either not doing thier job or people are failing at mechanics. Either way, in savage that equates to not a kill.

If you nerf ast to less healing, they will still need the be ABLE to do it and therefore will still be the go to with dps buffs.

If you remove cleric stance in savage and extreme to force healers to work together, AST will definitely have the spot due to dps cards.

The problem is NOT whm, the problem is the combination of SCH having a locked in spot as a dps and AST brings with it extreme damage buffs to the group as well extreme burst aoe heals with lightspeed. All healers need to be viable, nerfing asts heals to the point of incapable is not an option. Short of giving WHM a buff that can be applied increases damage by x amount, there is very little they can do without nerfing cards.