Whenever i am off tank in any kind of Primae / Raid i keep Stoneskin active on both healers (or on people with weakness)... i have yet to see anyone noticing it, beside one player who bowed to me after Titan...

For me, its an extra safety tool on my PLD to add some extra 10% hp to my healers in case of bad things happening.

Idk, removing it might have upsides (cant really think of any) but for me its a lost utility tool. Good thing i can heal people (yay, except i am usually not on the lookout for low hp teammates, and when its really required it takes too much time to > realize i need to heal > target > heal ... during that time hes either dead or fully healed allready).

DOn't really know how to feel about it