For streamers, this is just a job, a way to earn money, and clicks or views are not always important to them (although they choose those with a large audience), sometimes it is important for them to simply create a video in which they win a big prize. In fact, I think that such a prize is very difficult to win, and it is almost impossible for an ordinary player to achieve this, but there are many who are able to believe that they can also win, after such a motivating video, this is what it is designed for.
The work of such streamers is to create the illusion that it is very easy to win, I often see in YouTube shorts how streamers of model appearance spin the slots and of course they are happy to provide their affiliate link. The earnings are double since donations from viewers and those who followed the affiliate link and make deposits and they have their share of it, which surprises me every time that this type of streamers have a lot of people watching the stream, which means this scheme works and will be relevant for a long time.