Why doesn't pve have pvp combo structure?

[Seraphor]

The only jobs that really have a combo however are the melee, and MCH.
MCH has far too few buttons as it is so I see no reason to consolidate those.
I've just explained why I don't think any of the melee DPS should have their combo's consolidated.
That just leaves tanks, which already have simpler rotations than the DPS anyway.

Perhaps some of the tanks could see something done with their combo's to differentiate them a bit. I would suggest maybe mix up PLD's combos, and maybe consolidate some of GNB's. Especially as they're two jobs that quite blatantly do have too many buttons.
WAR and DRK if anything need something a little more than what they have, although DRK already has a decent number of skills, it's just it's burst phase that is too simple and similar to WARs.

I quite like the 'variety' of combo systems that the phys ranged have. MCH has 1-2-3, BRD has 1-(maybe)-2 that is dependant on an RNG you can influence, and DNC has a 1-2/A-B system kinda like RDM.
If they could rework the tanks a little something like this, I'd be down for that.