Simplicity over complexity, time to change.

[Baneus]

But then they could always make content harder too. Outside of Binding Coil's gimmicky fights, the new dungeons so far have never been overly difficult or complex to beat. That to me is a little depressing in a way.

You could simply do this (if you are on PC).

1. Open a command console and type the following ping -l 4000 127.0.0.1 -t
2. test how your skills/spells work
3. adjust the number after -l until each of your skills/spells and your ability to dodge has an extra 0.2-0.4 second response time.

Enjoy your extra difficulty

Though I would absolutely love to see more customisation of our character stats and class/job setup.