Three things

[Somnolence]

2) Heavensward was some of the best class design in the game sans refinement some balancing #outoftouch

The problem is simple.

Game designers do not properly design jobs and systems to be expanded in future expansions, so they have to either rework them or add fluff.

The first makes fans of old designs angry.

The latter results in fluff changes such as combo follow-ups (which makes jobs punishing when dying/breaking combos) or big potency oGCDs (for which damage variance gets annoyingly big with crit/dh rng).