I disagree on the samely part, completely.
Playing ret, there are times when there’s nothing to do in the rotation and that just feels bad. Fast paced classes are much more engaging and prot paladins abilities all feed each other which makes the calss feel very fluid. Hammer can reset judgement, judgement can reset SoTR, SoTR is your mitigation and awesome cleave damage. Sprinkle in shield throws and maintaining consecration and it just feels good.
Warrior is also GCD capped and feels nothing like paladin.
IDK maybe things are like that in DPS world, which I rarely play. DPS as a role has always been boring for me, do your rotation and kick stuff. It’s fun for a dungeon or two, but not nearly as dynamic as healing or tanking.