It’s the opposite, PLD rotation gets a bit more complicated at lvl 70 (actually before, as soos as you get Holy and requiescat) while DRK is pretty much unchanged.
DRK is spamming the same 1-2-3 combos all day while PLD have to manage 2 combo paths, physical and magical bursts and more oGCD.
However, it is harder to optimise DRK DPS because there’s no complexity in the rotation itself so you optimize by managing your MP/blood to maximize your potency during party buffs (i.e. trick attack, chain strat, balance, etc)
