[Spoilers] Why Zenos is the most important character moving forward

[TankHunter678]

The FFXIV story was never setup in the beginning to be about "combat high".

Unless you look at the Warrior questline where it is an actual problem that needs to be dealt with, as people who get consumed by that combat high wind up becoming unstoppable murder machines (referred to as "beasts") who endlessly seek that high until their body eventually gives out and they die.