You're not making any actual point there, they could've made him any job they wanted and you can pose that exact same question, it's still not relevant to a different NPC that already has an established battle style because Trion, Volker, Zeid, Nanaa, Mihli and Shantotto etc etc already had chances to fight in the game and they're basically the same in Trust form, down to Shantotto being too good to autoattack or signature WSs.
"Generic club WAR" wouldn't exactly be a bad thing at this point though (as long as they give her decent base damage), we don't have any blunt-damage trusts yet.