#FFXIVHEALERSTRIKE

[Galvuu]

The developers are on record multiple times that the fights are not designed for ANY DPS to come from the healer. If you want to clear that raid at minimum ilevel, you can still do it.
(...)
If people really gave a care about their DPS, every single DPS would be a black mage since they have the highest DPS output. No ranged DPS at all. That DPS gap between having 1 DNC/MCH/BRD vs one BLM is bigger than the Healer DPS'ing at all.

I'm certain that TOP is unclearable if both of your healers do 0 damage.
Dungeon gear and relics might have made it possible to do this in Dragonsong p7, but it still probably requires the absolute best dps/tanks players and some lucky opener rng.
Multiple EW fights are also unclearable week 1 without healer dps (you absolutely were not clearing 8S door boss week 1 with 0 dps healers and I'm fairly confident this also applies for 12S).

I'd like a citation on that developer statement but, even if they did say that, that's simply not true in our current FF XIV- I just gave you a few examples where fights cannot be cleared with 0 healer dps.
Also, your later comment is also just wrong- you're ignoring the multiplicative nature of raid buffs, the 1% bonus per each of the subroles present, each job's burst phase... in fact, the fastest recorded kills of 12S for EW have no BLM in the party. In a 2 min burst meta, raid buffs almost always wins (though BLM is competitive as a one-of... but 4 BLMs would never even work in any difficult content). Incidentally, that also doesn't work for TOP because you need a range lb in p6. You just die to the meteors.

Wiki says Thunder pre 2.1, Blizzard 2, Ruin, and even Mercy Stroke for some reason. On top of like every DPS cooldown.

https://finalfantasy.fandom.com/wiki/Additional_action

So, yeah. There we have it. Amazing job design we have now, so that the literal training wheels version of White Mage had a more meaningful DPS toolkit.

Thunder was interesting because it was a dps gain and had a different duration- so healers could be juggling three different timers on their dots. Honestly, I can see why they removed Thunder, but it was fun nonetheless!
(Thought I had posted this before, guess I need to go sleep)

Edit: fwiw, there is content where healer damage isn't required. There's also content where healer healing isn't required too! That's why blanket statements like "healer damage isn't needed" or, the more extreme but equally silly "healer healing isn't needed" are not correct and, frankly, don't help the discussion. Healers need their healing to be more meaningful, more engaging and could also do with a more interesting and expressive dps rotation. I'm not advocating solely for more dps tools, I just think that's the easiest thing to start with. I definitely would like XIV to move away from its encounter design and allow for reactive healing in its content.