In the moment a gambler can beat the casino but it is more likely to happen by chance than because of the actions or experience of the gambler. It is such winnings make us again and again to try our luck at gambling. Even if after such a win you lose all the money you still have hope of winning. At such a moment it is very important not to give in to emotions and withdraw all the money from the gambling platform. In the long run, of course, the gambler will lose more than win because gambling is a zero-sum game.
It is probably possible to beat the casino if you are lucky enough to win the jackpot from the very beginning. But if a player plays for a long time, many years with big losses, but continues to play because he believes that he can win, then even after winning the jackpot, his positive balance may not be that big, given all his previous losses. But I understand that many players play with the hope of winning the jackpot someday.