What makes WHM special? Nothing anymore.

[Risvertasashi]

They had mitigation in form of the traited stone skin , i remember on t13 an adlo and a whm ss was enough to mitigate most of the flatten dmg now its more advantageous to just pre cast a cure1/2 instead of wasting mp on stone skin sadly they took it away from them, my point with the mitigation is that they shouldnt have any huge mitigation like sch succor /sacred soil or fey covenant, and scholars shouldnt have that much aoe burst healing like they recieved now in heavnsward but that is just my opinion.

I don't particularly disagree with most of what you said, but minor nitpick: Stoneskin, even at 18%, was less efficient than our worst efficiency heals. It was always more efficient to precast a heal, but you stoneskin'd Flatten because that thing really frackin' hurt and could oneshot a tank, nevermind the Flare Breaths that came right after it. xD