This post is mostly responding to the side-topic of the thread.

FINAL FANTASY® XIV User Agreement
2.1 Cheating and Botting.
You may not create or use any cheats, bots, automation software, hacks, mods or any other unauthorized software designed to modify the Game and gameplay. In addition, you may not take advantage of game system bugs and exploits during gameplay.
On Prohibited Activities in Final Fantasy XIV you can read the following:
Activities that destroy game balance
Using third party programs or tools in FINAL FANTASY XIV is strictly prohibited since they allow users to gain an unfair advantage over other players. The use of programs or tools within FINAL FANTASY XIV that allow certain continuous actions to be performed automatically are often referred to as absentee play, which is also prohibited in FINAL FANTASY XIV.
And a CM response.
Quote Originally Posted by Youmukon View Post
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L'utilisation de claviers possédant des fonctionnalités avancées n'est pas prohibée en soit. En revanche, l'utilisation de ces fonctionnalités afin d'automatiser certaines actions sur Final Fantasy XIV l'est. Être présent devant son ordinateur ne rend pas l'automatisation des actions acceptable. Ainsi, les joueurs ayant recours à un logiciel tiers, une fonction "turbo" d'un contrôleur de jeu, des touches de claviers programmables ou une méthode plus artisanale (telle que coincer une touche) prennent le risque de voir leur compte de service Final Fantasy XIV suspendu ou fermé.

The use of special keyboards containing advanced functions is not prohibited. On the other hand, the use of any of these functions in order to automate certain actions in Final Fantasy XIV is prohibited. To be present in front of one's computer does not make the use of these automated action programs acceptable. So, any player who uses third party programs, a "turbo" controller, programmable keyboard keys or any other method (such as taping down the enter key) is taking the risk of seeing their Final Fantasy XIV account suspended or closed.

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My interpretation is:
Not illegal persay as a law (jail, fine, court). If discovered, the above "could" be interpreted by SE in a way that does not favor the end-user of these devices. And that there is a risk involved if you use of these features.

Special thanks to Umo for prior compilation and Matsume for the translation.