Why do so many healers not use specific abilities?

[Nyxn607]

Once you do a fight enough, your careful planning of healing CD usage becomes automatic. Even in casual content: in V12N, I use my Earthly to heal large amounts of AOE damage, saving both myself and my co-healer the need to use a GCD heal and waste the MP (because we're gonna need it later for raising, typically).

For example, I use it to heal up after Omega-F's Laser Shower about a minute or so in, the one that happens right after the first Optimized Fire III. I also use it to heal up stacks, such as the one during Omega-M's second appearance where he does the donut AOE followed by the proximity AOE (this also helps because it detonates either automatically or at my command, and the party is topped off while moving out of Efficient Bladework - I can save my Swiftcast for something else, and I have no need to cast a GCD healing spell once the bosses stop being flashy; I can reserve my mana).

This is a good use of Earthly Star. My issue when I use it, even when placed properly, half of my team (usually pugs) just stand outside of the range so I need to burn MP to heal them anyway. It is very annoying lol.

[Gugumuni_Bobomuni]

Pretty late to the party but from a sch point of view about excog:

Using it is a dps loss in many cases, since in order to use it, i gota sacrifice an aetherflow which could be an energy drain. So, the question is, is excog NECESSARY or not. if you survive without excog since theres no 2 back to back big damage (like from o4s exdeath, with his thunder 3 tank buster followed by his pretty huge auto attack damage that were known to be letal), then, if excog isnt exactly necessary, normally, WHM got tetra and Bene for tank healing right after a tank buster, and AST got Essential Dignity, which would heal less if i actually used excog here. Also, as a sch, if there is no danger of tank death immediatly after a tank buster, Fey Union is a better use of resources so that the Aetherflow can be spent on ED and the tank will still recieve a crapton of healing from the tether, just, not immediatly.

Excog is very very niche in its raid utility, only good for back to back big tank damage, since if its aoe followed by tank damage, you would be using Indom if Hots wont be enough, and if the other healer isnt wasting resources, they should have a big tank heal available as mentioned earlier. The priority for healing in general is :
free resources healing (fairy stuff and cohealer)> limited resource healing (aetherflow) > casts
In most cases, in a well oiled healer duo, you shouldnt need excog unless things go wrong or unless a specific mechanic calls for immediate spot healing without enough time for hots or with damage fast enough that maybe the cohealer wont have the time to use an oGCD if he's in the middle of a spell.

I did use it in o7s on the missile bleed dps, along with fairy tether, might have been overkill here, but its good if you dont 100% trust your cohealer. In o6s the offtank did take significant enough damage that the sch had to use a bit of aetherflow to be safe unless well geared.

Excog has the issue of being a trade off for dps, using it means no ED, as i wrote before, so, unless its absulutely required, or unless its planned by the 2 healers planning their whole fight, don't expect excog in general. You might see excog being used as an instant 800 potency heal when things go bad instead of the actual post tank buster prep heal, but excog itself hasnt been a make or break thing in most cases. If you got time to be healed and not in immediate danger of death, Fey Union and Whispering Dawn should usually be good enough.

[JunseiKei]

This is a good use of Earthly Star. My issue when I use it, even when placed properly, half of my team (usually pugs) just stand outside of the range so I need to burn MP to heal them anyway. It is very annoying lol.

+_+ Sacrifice!

[Mansion]

This is a good use of Earthly Star. My issue when I use it, even when placed properly, half of my team (usually pugs) just stand outside of the range so I need to burn MP to heal them anyway. It is very annoying lol.

That's when I play the "How low can you go?" game with cheeky DPS (mainly ranged) don't get in my Earthly Star.
Usually they end up coming by my side to signify their need for a full HP bar