Stoneskin was useless 99% of the time - where the only good application of Stoneskin was if weakness reduced the player's HP far enough where they needed all the eHP they could get to survive the upcoming mechanic(s). This is why it was removed from the WHM kit.
- Cure II was the same MP cost as Stoneskin
- Cure II could be cast faster than Stoneskin (OG version, the trait in HW changed that, but I'd prefer the +HP% versus the faster cast)
- Cure II generated more eHP than Stoneskin (making it the more MP efficient tool)
I wish people would stop asking for the return of Stoneskin unless they suggest changes that would make Stoneskin useful in the current iteration of the healing kits. Bringing back OG Stoneskin will not do anything about making WHM more useful.
Divine Benison is a proper replacement for Stonekin. Even though Divine Benison's HP% is less than AAR Stoneskin, it's still much better just because it's an oGCD, making it a free and on demand eHP barrier that at most clips the WHMs GCD for 1s. When it was a GCD (Stoneskin), you had to compare it to other healing tools in the kit and it was absolutely inferior to Cure II in 99% of the scenarios you could use it.
I would say Divine Benison could be argued to be worse than Stoneskin when it required the Lily to use it - but now that the Lily requirement has been removed it's a great tool for the WHM kit.
Pardon my aggressive stance - I just get tired of people wishing for a spell to return when it was something you didn't want to cast the vast majority of the time.