No amount of catering to healers is going to make them good players. A lot of healers are just really bad at healing and no amount of catering towards them is going to fix it.
They don't have to figure out anything because there is a literal sheet that tells them what to do where.
But for some reason for XIV players Healers are immune to criticism and are infinitely catered to, despite me dying to autos and tankbusters way before Phase 3. I love taking a Tankbuster at 50% hp while the whitemage is busy glaring.
The only healers I ever had issues with during Blackhole are just clueless drooling idiots that don't just follow the mitplan.