Yup, there are gamblers who become desperate thinking that the strategy that they've got will bring decent amount of money, as even they already suffering from series of loses they will insist and will keep that strategy, they've got that hope inside them that in anyhow it will work and it will somehow bring that win that they are aiming.
And precisely, this is a huge mistake on the part of the players who believe that things can happen thanks to the strategies and what they apply in the casino , it is not like that, the casino is not an ATM , no, the casino is a company, a business where its Owners are the only ones who maintain a constant profitability, the people who hope in a casino because they think they are going to Win are making the worst mistake of their lives, which is what they can't do because all their money will simply go away.
Probably, I would agree with what you said that if there is anyone who has passive income that they experience in the casino, it is none other than the owner of the gambling platform itself, and for the players, it all depends on luck and control of the house edge as to who they want to give a chance to win in their casino.
So if you are one of the ones they choose to win, you are lucky, for example, out of 1000 players on their platform, they will only choose one and they may only give coins as a prize to the ones they choose, that's all I think.