Why doesn't pve have pvp combo structure?

[van_arn]

Even though I like playing white mage, spamming 1 is extremely boring. I'd rather dps jobs and tanks don't become like that. Pressing other buttons is more engaging, even if spamming 1 button would do the same.

While this makes some sense at the surface level, keep in mind you're pressing the same button for the same thing on whm. If they were to consolidate the buttons on a Samurai, for example, you could claim you're just spamming a button three times-- but you're getting 3 discrete actions out of the same button. You could still do something like
(assuming you already have 3 sen and need a damage buff)
22[buff] <Midare> 2 <Higanbana>
and have all three of those 2 presses carry out a different action.