Bots are a familiar problem, and this cheating is nothing new. I also think so, with the rampant cases of someone cheating with bots, surely the team from Roobet has taken steps to anticipate things like this. Not announcing does not mean not doing, and also although maybe the way they do it is not entirely able to make bots disappear 100%, but at least make the use of bots and such can be minimized again.
Cheating things will always exist, especially in a giveaway or contest or something like that.
It's impossible to detect and eliminate all bots when they just start but bots and cheating are harmful for a casino business, they will try best to block and eliminate as many bots and as soonest as possible.
Because a longer time they let bots operating, the bigger risk their casino will be exploited. At the end, if bot operators fail to exploit the casino but already spent too much time and efforts for it, they will make funny scam accusations.
I know it takes time to handle accusations and some times, community will have people who believe in invalid accusations too. So it's better if a casino can have their preventive tools to break down bot operations as earliest as possible.