For one they use past events to predict future results. So after many analyses they can be helpful in entering or exiting a trade. However markets are very dynamic. For example the AI bot cannot predict some catastrophic event which might affect the markets like Covid did in 2020.
Even if these AI bots work. The more people use them, the less effective they will be. Because in an instant you will have thousands of people buying at once and it will cause the price to spike and then those that bought last will become bag holders. And then people will get smart and basically fade all these trades that these bots provide. If people will know that there will be a big spike due to thousands of people buying a certain crypto at a specific moment, they will fade all those moves and make money in reverse.
So if it works, it will work temporarily before too many people start to rely on them.
And if more people also using the bot and make the competition becomes tighten so the dev will research and give newest update so the bot can works properly with the current situation. That will never ending ways for the developer because they must give the update to the bot especially when the situation is always change. People also need to learn more to operate the bot because there will be many new feature that will be added by the dev.
AI bot needs to research more so that will work properly for people so testing the bot will be necessary before they launch the bot. We will see what will be with the AI bot later.