I disagree and don't think this is necessary to be honest. I am AST/WHM healer main and don't understand the need to go this far as to protest against what they have done with this role.
1. The streamers that clear content without a healer are Elitists. This is their job. They don't do anything else so they find ways to make it different and challenge themselves. For example, streamers that clear FFX with only using Wakka or whatever. This is what they do. This does not show anything other than they are bored. While , yes the dungeon can be cleared without a healer, how many people actually do this? 1%? Not enough to make Yoshi-P care in my opinion.
2. As far as the role being "boring" in dungeon content, this dungeon is a story one. The first one. Please tell me how many times you actually run a story dungeon more than once MAYBE twice in an expansion (outside of expert). The expert dungeons, tanks don't survive without a healer when big pulling. Also, the streamers running this dungeon probably spent their entire media tour slot playing this dungeon. So they knew the mechanics, didn't get hit and had a red mage and warrior. Get into a dungeon with someone who hasn't done it yet and the healer role is necessary, guaranteed. I do think they could add like an "Extreme" version of dungeons to maybe help with your need to heal in dungeons. Seems like you don't do much else...
3. I do agree that the healing potency of tanks need to be decreased. Definitely way too high for no reason.
4. In regards to "boring rotation", you would complain about not being able to maintain your rotation because you had to stop and heal. So pick your battles. New attacks were added this expansion and we don't need to make it complicated. Our job is not have the highest DPS, it's to heal and when we are doing end game content, healers are very necessary and relevant.
5. Are you the same people that complained about the grapes? If so, this would make a lot of sense.
6. With all this being said, I do understand your side and where you're coming from, but I don't think it's necessary based on one media tour dungeon that a group of Elitists streamed. Give the expansion some time to show off what it has created and then form a formal strike or whatever. This is like seeing one FATE and then throwing your hands up saying, "I knew it! They only have collection fates now! I am done!" Calm down, talk to your therapist, it's going to be ok.
In the meantime, thank you in advance for the quick queues, higher numbers for healer DPS, space in ultimate groups, and much more. Best of luck in Dawntrail!