Point is the look of makenshi or ff3 m knight, dark knight or whatever is undeniably what cecils battle sprite is totally based on, and the ds remake putting in the replacement probably means that they meant to bring the similarities together to an already understood job in the western world. it did use katana in the famicon version, theyre called dark swords in ffiv in essence ff11 made scythes the big deal with this job, before then it had primarilly used swords, whether 2 handed or sword and shield, except that one game where it uses spears. from the sound of it, 11 had some cool additions to the job conceptually, but the scythe thing was pretty weird. From my understanding to even unlock the job you have to kill a lot of enemies with a greatsword, to get a job that didnt seem to use them well(?)