Why would you waste your time? It's their time you're wasting. I've said it before, I'll say it again:
If you're mass shielding, because "that's what you do" then how are you helping for the things that shields are actually good for? Discipline has such an effective and unique role that people don't take advantage of, simply because they don't want to be "a healer" anymore.
Those "situational" encounters are all of ICC. Infact, the only time outside of lolInfest management that is useful for mass shielding: Festergut, phase 3, despite the fact the tank's getting hit hard the entire raid will be eating a burst. Weakened Soul doesn't let you cover debuffs, splash damage, and it's not even effective at sustaining people in aura fights.There's those "situational" moments where youll have to precast prayer of healing at times, but other than that, its not much.
2 (now 3 because of the buff) ticks of an aura. That's it. But if they're hit by anything? Gone early. Do you come back and support? Nope. You're too busy "mitigating damage" somewhere else down the line. I don't know about you, but if a tank says "i'm going to tank this one for 6 seconds, then this one for 6 seconds, anything after that has to be handled by everyone else" you'd kick that tank for being useless. Yet, that's what Bubble Bots do when it comes to healing, and people let them! The standard is so low that terrible people are allowed to get by, and encouraged to justify this terrible ideology as superior.
Mitigating en masse is done via healing. The only difference is yours is front-loaded, and unsustainable. The second anyone actually realises it, haste suddenly isn't "useless".Im saying haste is just about as useless for disc as getting more mana regen is in terms of mitigating raid wide damage.