Yeah, this.
I don't know what DFs these people run, but I've yet to find one that the party wouldn't have wiped if I literally never healed anyone.
The issue is more that most suggestions stick with a theme, in one of two forms, both of which people specifically have problems with. Namely, busywork for the sake of busywork that papers over an existing problem but steadfastly refuses to address the core problem, and does so in a way that's like to annoy a lot of people in the process who may prefer the current situation better.
As I said, what happens if you're in a party without the Jobs that require more healing? That doesn't fix the problem. Same as the more DPS buttons proposal, which also doesn't fix the problem and makes it worse for a lot of people (some are "less bored", but those who already don't like DPSing are even more annoyed) since it's merely distracting from/papering over the problem, not addressing it.
The core problem ultimately is encounter design, which includes damage output in both rate and quantity, and in Job design having too much access to non-GCD free healing that deals with every damage problem that comes at the party, which is also the reason for the Garoifiosis spam issue; since GCDs aren't used for healing, you end up with a lot more of them for...that.
Any true solution to the problem has to address those two issues. Solutions that skirt them aren't doing that, so such proposals, yes, won't be good enough, since they fail to address the key issues themselves, and thus perpetuate the problem, not solve it. And when they specifically make things worse, it's not a solution at all.
But...I also understand that's a harder sell, and a more deep seated thorn to dislodge.
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And yeah, that was how I interpreted your post. Though I am reminded of things like WoW Warlocks having the ability to convert some of their HP into MP, but they also had the ability to drain HP from their voidsent-esque pets to heal themselves, too (and also to use Bandages in combat, which actually WAS a thing once upon a time...) So while they could kill themselves and often annoyed healers, they ALSO had the potential to heal themselves...
...but then if Jobs like RPR/etc work that way, it's not really a healer problem since it's (potentially) solved by the Job itself.