According to FFLogs, AST pDPS >= WHM pDPS in 4.3

[Exiled_Tonberry]

Sadly, I suspect it will get the Dark Knight treatment. "It cleared Ultimate! It's totes fine!!" Took 4.2 almost killing Dark Knight for them to finally do something.

I fear this too. Or even worse, they just don't see anything wrong with this in general because WHM can still heal fine, despite it no longer offering much else to the raid