The OP discusses a few solutions regarding the opener and presence of mind to fix the damage, which is underdiscussed ITT. I understand some people may want more complex rotations, but I think in the interim these suggested changes would be sufficient to bridge the damage gap currently and any further rotational changes can be done in 7.2/8.0. AST will always have a higher ceiling because of raid buffs and gear scaling, but making that difference at a closer % would be a step in the right direction. If AST has more mit than WHM whatever, I just want the gap in available mitigation per minute to be bridged further so I am not just a spectator during a raidwide cast.
Also doom-posting soliloquies are not really relevant ITT.