I feel there needs to be a good balance between the two - make a job too easy and players will get bored, make it too complicated and players won't want to try it. Unfortunately everyone has different levels of skill - what's complicated to some would be difficult to others and vice versa.

For me, I really enjoyed the HW version of AST - I loved how the cards and system worked around it, but others found it too complicated and as a result the devs simplified it. I still enjoy AST but it's not as it was and now a lot of folk are upset about that too, resulting in another upcoming re-work (I hope they don't dumb it down any more). On flip side, I find BLM really complicated to play and don't enjoy melee classes as much either - others will say those classes are easy for them.

I think also simplifying the classes and aiming for this universal "2-minute dps rotation" for all just takes away class identity. The classes lose their uniqueness and just become a role rather than a class. Best example for me is Summoner - it doesn't feel like a summoning class anymore to me, rather than just a mage with some flashy looking abilities based on the weak mini-primals that pop up, put on a light-show then fade away again. I'd much prefer Summoner to be in the same vein as FFXI - give us a challenge to earn those summons, let them really fight alongside us, let them buff our friends, debuff our enemies and make us feel like true masters of the primal forces!