I've been playing WoW lately, and honestly healers in that game are such a breath of "fresh" air. Even thought WoW healing has a "sustain" based design, meaning you are mostly expected to constantly be casting healing spells to slowly fill up the health bars, the healer kits are designed with Downtime in mind. You have Procs, small rotations and even Damage/healing synergies. Also CC is quite important in the harder Dungeons. It really makes the 1 button spam of FFXIV's healer extremely bland and boring in comparison.