Here's my issue with the healer changes... (not necessarily your statement, but I want to build off it)
The line I've bolded has literally never been the case for Final Fantasy XIV. The team has stated several times that healer DPS has never been and probably never will be taken into consideration. We live in a sytem where healer DPS is 100% optional. The reason healers can DPS in the first place is because all instances must have downtime between waves of damage received by the party. This isn't designed for Healers to go on the offensive, but to allow room for error. When a healer doesn't perform optimally, or gets overwhelmed for whatever reason (DPS not dodging AoEs, the Healer is new to the trial, etc.) they require moments to breathe and catch up. If we didn't have those break periods, raid content would be ruthlessly punishing on healers, threatening to end a raid at the smallest misstep.
Not every healer or group is going to fall behind though. Many skilled healers will be able to keep up with what's going on. This naturally turns those break periods into moments where you have nothing to do because you're all caught up. You don't have to DPS at this point, as the game certainly doesn't require that you do, but the fact is that you can if you want to. Again, it's been entirely optional.
Neutering Healer DPS doesn't actually make it easier for the healers that don't want to participate because that DPS has never been expected of them in the first place. All it does is punish those of us who do want to be able to participate in DPS, i.e. those of us who want to do more than what's expected of us--to do more than the bare minimum. It's not fair to dumb it down to a bland and boring button spam because it doesn't help anyone. For someone like you who doesn't want to DPS, not having DPS tools doesn't help you, and having DPS tools doesn't hurt you. What matters is how content is designed.
Healer DPS shouldn't be this brain-meltingly boring spamming of a single spell. It shouldn't be a full on DPS rotation either. It should be a small and simple, yet engaging system that rewards players who want to do everything they possibly can at any given moment. Stormblood Scholar's DPS set I think was a pretty good example: You manage a couple DoTs, Shadowflare, and Energy Drain along with your Broil casts, + Ruin II for weaving through abilities. It's not Mudras. It's not building up Greased Lighting. It's a simple handful of tools that have enough intricacy to make your break periods more engaging should you chose to DPS.