is there a point to using Royal authority in your pally rotation?

[Izsha]

That's not entirely accurate because you need at least some buffer between you and the next line. On something like PLD whose damage combo doesn't have any enmity bonus, it's possible for DPS to generate enmity faster than Royal Authority.

No ones damage combo has any enmity bonus. But pld does have scorn and swipe in their dps rotation which do have enmity multipliers.