It sounds like a multiboxer since they want their characters to be as uniform as possible to make controlling then easier.

I read somewhere multiboxing is FFxiv-legal, but that wasn't on any official SE website. Supposedly for it to be 100% ffxiv-legal multiboxing, the player needs to be manually switching between each screen to enter commands in all screens manually. However most multiboxing software have built-in features for replicating all mouse and keyboard commands entered in the "parent" screen to all "child" screens and while that functionality isn't ffxiv-legal, I doubt that SE can actually guard against it because they are allowing the software performing that action. Kind of like allowing Microsoft Word to be used for essay writing but telling students they can't use spell and grammar checking. How's the teacher going to know?