Well, I agree, let healers jobs have special mechanics for healing in the form of maybe a puzzle, jumping or running on some platforms that only they can see, even if the condition is an emote or something else special to liven up the fun of playing. But I disagree with taking away the ability of other jobs to somehow heal even if they are able to survive anything without a healer.
Unlike other MMOs, I have a great feeling from FFXIV that none of the jobs are anything extra special except for the type of combat and the appearance of spells. And that way I don't get healers playing god that I have to kiss the shoes of to pass an instance. And that's the right thing to do.