Hot take : %-based damage raid buffs negatively contribute to job design

Think about it. Jobs are all designed so their burst fits nicely in that ever-present 20 second window. And that in itself isn't bad, but it affects the feeling of every job. The ones to skirt around this problem are DNC with Dance Partner, since it lasts indefinitely, and BRD's songs, since their durations are very long.

One way I see to fix this is to replace the percentage buff with a flat potency effect. For example, if any one of those gave you X stacks that deplete on use for a weaponskill or spell, to deal Y potency damage.