I will eat my hat if SE ever seriously cracks down on 3rd party tools. They can not afford the loss of players that would cause.

There are so many tools that many people use: ACT (+plugins that come awfully close to playing the game for you), alternate launchers with plugins that automate many things, bard players, gshade, ... And going back to the past there were tools like guildworks and xivhunt among others.

I've never used any of these of course but simply looking at the discords for these tools should be enough to show you that there are at least tens of thousands of users of these tools, and that's not counting the ones that aren't on the discord servers.

Let's also not forget the many streamers that use ACT visible on stream. SE would be out of their minds to crack down on it because streamers are advertisement, and a game without a draw is a game that doesn't make money.

They'll never proactively crack down on it. Worst they'll ever do is wag their finger and go 'tut tut, don't do it' to pacify the toxic casuals.