Jobs with high burst are always easier to optimise on. Consider that every job has access to infusions, and infusion windows are 30 s long. Content is designed around you being able to unload on the boss before running off to do a mechanic. You may not always be able to use your buff the instant that it comes up, but you will pretty much always be able to get to the maximum number of recasts.

WAR's design is like having both the best acceleration and the best top speed in Mario Kart.