I see your point, but my personal assumption is that this would be difficult to realize because it would minimize the casino profits and cause losses on a regular basis if such a feature were to be created. However i am personally very much in favor of it, it is very interesting if it really exists and maybe many of us will become rich in a relatively short time, Lol.
We're all in favor of it because we're players that sometimes skip the time of taking the profits when they become 2x or 3x.
So, having an option to automatically cash it out whenever it hits that threshold means a lot to us. Especially the gamblers that are having fun and forgetting to withdraw. That's the main reason why many of us have been losing more when we've won already because we're not withdrawing the money.