I am very skeptical about the use of bots in gambling.
My (small) experience with such bots is extremely negative. I lost a lot of money in an online casino very quickly.
The use of bots in gambling has accelerated the process of losing money!
To be honest, it didn't make me very happy. I expected more efficiency from using bots.
It is possible that there are brilliant developers who are able to create bots that increase the chances of winning in an online casino. However, in this case, these developers are more likely to operate such bots themselves (rather than sell them to other players).
To be honest, using bot will never be able to guarantee that you can make a profit, everything requires a process that can't be done only by using bot, sometimes bot can be set by the developer to get defeated and will make the user lose. Gambling is more exciting and fun when you do it without using bot.
Now that you've mentioned it, indeed it's possible that developers actually use bots as bait to make the players lose and let the house gain.
I agree with you that bots do not really guarantee a winning from a casino or gambling website because the bots just also basically do what the humans can. I doubt if they really can improve the probability of winning to a great extent that you'll have a greater chance of winning the bet because bots were commonly use to be a form of assistance. And not every gambling platform actually allows the usage of it so the player must know the terms and conditions otherwise he would be banned from gambling and has the tendency to lose the initially deposit made or the winnings prior to using bots.