This. Basically:
Cactbot does automate call-outs, but it's no different than having your raid leader tell you what's coming up or where to go. Some features are indeed personal, as they tell you where to go based on what marker you have, but those are specific mechanics. From what I've seen, it often just says "Hey, X mechanic is coming up. Do it." and you still need to kind of know what's going on and where to go. But it doesn't resolve the mechanic for you in its entirety, you still need to know how to do it.
Similarly, ACT automates the collection and organization of data into readable charts instantly. This is information you can get already by logging in your Battle chat, but that'd be way too tedious and you'd need a fair bit of automation on Excel as it is to even get through it.
True full automation to the point where it's considered full-on-can't-even-deny-this-is-cheating would be what bots do. Where they automate their movements with no input from you and seamlessly clear fights.
Yes. You do still need to learn the fight, obviously, but having something be so accurate, so personal and telling you what the fight is doing does indeed mean you're not that great at the game.
But I don't think the people playing the game with Cactbot on care to be seen as good
Can you argue that they don't deserve the rewards? Yes. But, and honest question here, it's just stuff in a videogame. Do they
really matter?
Everything is an unfair advantage against console players

Legacy Controls vs Standard Controls can even be seen as one in very, very niche cases, for example.