This is said in many casinos, but nobody says how much these players lost, as a rule, these amounts are much higher.
That's how gambling is going to be which we cannot be estimated who is going to lose but winning will be mentioned by them on time, these are a basic thing in order to attract more customers to their gambling websites.
But they should provide statistics though, if for every thousand people losing thousands a couple of handful of people win a couple a hundred then it means that it's probably not even worth bothering since statistically you'll lose more anyway