Until square bite the bullet and try to handle balancing issues like all other mmorpgs, healers will stay the way they are. This game needs Talents or Specialisations, but square will not do it due to not wanting to invest the time into balancing. That is your ONLY fix. Otherwise the game will become overbloated per healer if they implement what you guys are asking for.

It's unfortunate, but when you look really hard at this game, the actual gameplay is terrible and class design not far behind. It makes up for it very well with the content, world, story and community. But jeeez is the game awful mechanically speaking.