the logic of "you'll never be able to perform as well as someone else unless you quit the job you enjoy because the devs arbitrarily decided your job should have fewer buttons and therefore made your damage significantly lower on purpose" is just completely asinine. if you want a subjective measure of difficulty to be determinant on how much damage someone is able to deal, then make all jobs equally as difficult and the players choose whether or not they want to press all their buttons and deal all that damage.

a DRK who thinks their rotation is too hard is free to never press shadowbringer, salted earth and carve and split
a WAR who wants to deal more damage has literally no option other than "play another job"