These bots are designed to perform certain tasks and it has nothing to do with wins. There is some misunderstanding about the bots and the same is used by some developers for the purpose of marketing the bots. These bots just ease the process of gambling according to our requirements and not assure wins.
But sometimes there are some wild thoughts about bots especially for myself because even though this makes it easier for gamblers to play but this will also invite prejudice where when bots are run by a site there is clearly programming there that is assigned to benefit that site.
Even though this kind of thing is not really proven right or wrong, but I still always feel wary of using bots so that I really prefer the manual way rather than using bots there.