Might be a take, but I think the whole 2 minute thing is kind of a red herring. Damage is damage whether it's a party buff, personal buff or pure potency. These actions will be expected to be used on cool down no matter what their cool down timer is, unless it is not advantageous to do so as dictated by a fight's timeline. My biggest critique is that a lot of the big 2 minute skills are just not that interactive, but for for the most part I think that a lot of 2 minute discussions are very surface level, and just lead to dead ends.

Instead I think the real meat of job design discussion is in the filler rotations. Filler is where you spend the majority of your time playing a job, and where most of the moment to moment gameplay happens. This is where I think jobs need the most improvement -- especially healers. If filler is great, then standardized bursts shouldn't matter.