Yeah it's weird that only melee DPS get their own sets Maming/Scouting/Striking. All ranged physical share a set (aiming), ranged magic share a set (casting), healers get healing and tanks get fending. Maybe to change up the aesthetic between similar styled jobs? It's kind of a bad strategy because then we can't get things like an evasion/parry tank, and all tanks will be high VIT/high HP/high DEF type jobs as opposed to other MMOs that have other kinds of tanks other than the armored wall type. Rune Fencer was an interesting kind of evasion/magic/parrying tank in FFXI, but I supposed FFXIV DRK is the spiritual successor of that.