The game isn't a challenge anymore. My fondest memories of the game was Friday nights sitting around with a group of RL friends doing CoP missions. The rest of the week was dedicated to doing pre-req missions/cut scenes. I have some memories interwoven with the great storyline that define the magnificence of this game.
I can still remember dumping out on the O/U fight with 1 gil Mistmelts in our Bazaar. Oh how we RR'd instantly and took them out as fast as we could. It would have been amusing to watch.
So yeah bring back difficulty to the game. If you're worried about casuals that are unable to do high end content, make it so that you can opt into HQ fights for better rewards, or atleast a chance of a better reward and make the fights repeatable until you move onto the next mission.
Some of us want to be challenged, and in my history of playing FF games, I've always opted for a challenge. Fighting Ultimecia with a Lv37 Squall (and the others under that) by spamming Holy Wars, Doom Train and Eden for 3 hours only to finish the game at 2AM and sit in awe as the credits roll. That is what a FF game is all about, the difficult, the pain, the relief when you finally do it. If I wanted to be spoonfed rewards, I'd play WoW.