And let's not forget that the response to tank imbalances was... adding a new tank. Which fixed most of their functional problems, all that remains now is flavor stuff (WAR and DRK being too similar, and GNB sounds).

Healers? No new class (even though Dancer could have been a great non-caster healer), and all existing healers are now immensely dumbed down and functionally identical in the name of balance.

So now instead of being different and unbalanced, they're identical, boring and still unbalanced.

Gee, I wonder why there's a 20 pages thread about healers quitting, but no other role has that.
Maybe because it's their most powerful and boring iteration in the entire FFXIV history?