I realize there's already WHM fatigue on the forums but I wanted to get my thoughts on how to salvage WHM for Stormblood on the forums in the hopes that the devs see them. I know that's not likely but at least I can say I tried to offer feedback.
1) Give back Stoneskin II. As a preemptive party shield with a nice long duration, it offers WHM some minor utility. It won't step on SCH/AST toes with shielding since it can't be used in combat.
2) Make Confession stack on the WHM and have no duration. Currently, with a 20% chance to proc, WHM's will have to waste inordinate amounts of GCD's and MP trying to get stacks of confession on all their group members, especially in 8 mans. Stacking Confession on just the WHM would make Confession stacks work much like Aetherflow stacks do and make Plenary Indulgence a much more reliable skill to use.
3) Give WHM an actual group buff utility. One simple idea could be to give WHM a higher level trait that makes Presence of Mind affect the whole party instead of just the WHM. This would address WHM pleas for utility that isn't just another heal they don't need and this idea doesn't add another action button to the bar.