I think its fine as it is.

If everyone is doing their job, resource management is a non-issue.

If everyone derps it up, resource management becomes a VERY VERY blatant and important thing.

Just yesterday I did the Gilgamesh fight, a very easy encounter, right? Well yeah it was, simply because I was on the ball with healing those who weren't avoiding damage properly. And for the first time in a while, I went OOM. I popped Shroud and had to go into conservative mode. Had to triage players based on what I perceived to the best route. What this meant is I had to watch the DPS and let the weakest link die and keep the ones alive that assured success.

Wasn't just the DPS's fault. The other healer could have pulled their weight a little more. But that's the nature of Full Parties, sometimes you just gotta pick up the slack. Not everyone is going to be perfect. All resource management would do is require casual players in the DF to be perfect on fights like Gilgamesh and that isn't good for the prosperity of the game by any means.

We gotta have our easy fights to keep the masses happy. And our harder fights to keep the more adept players happy. And right now, it works.