Ramuh isn't going to be a huge issue. MNKs can just FoE while CNJ/WHMs use Stone/Stonera. Who cares if BLM/THM isn't viable for one fight? It is stacked in jus about every other, so I think that it is fine that way.

You aren't concerned about what is good for WHM/CNJ, you are concerned about what you want for BLM/THM.