2 minute burst window vs fight design
If every job has different timers on cooldowns, burst windows and playstyles, the fight design would need to change to reflect that if we want to keep the design philosophy of "bring the player, not the job."
What's more important to you? Having fights were all jobs are more equal because every fight has largely the same design? Or every job being different and thus some jobs inevitably being better in some fights than others due to the nature of mechanics and fight design? Obviously this is still currently the case even with 2 minute burst window, but as previous expansions showed, it was pushed with a lot more disparity.