What you still fail to understand is that even if something is not implemented, players will find way around it and use parsers etc. You can parse XIV actually, without even breaching the ToS (the logs are exported by using a native functionality and the parser doesn't need to hook itself directly to the game process).

As for:

ehm and in her opinion the FFXI UI is something that works = wanting to play FFXI?
The FF XI UI doesn't work. The game is getting a new UI for a reason. Also how many PC players did use third party tools on XI? Lot of them, which obviously mean that there was an issue with the UI from the start. If the vanilla UI is fine, why would I bother to breach the ToS and use third party tools?

And don't tell me that only min/maxers did so. Even people not caring about endgame and such had Windower+plugins installed. It wasn't (only) about performance, it was about convenience.