We're talking casino gambling, not religion.
Religious folks can and do happily base their fundamental belief system on the supposed existence of an invisible Supreme Being, but if a casino gambler were to disregard the reality of math and base decision making on superstition or unfounded belief they'll almost certainly get crushed and ground up over time.
In the modern world casinos supplant some of the functions which had been provided by churches: surrender in search of salvation; social contact with others and of course the instilling of False Hope.
With casinos, the False Hope is for a jackpot / Big Win whereas with religion it is Eternal Life / Salvation.
Both require a form of tithing as well: "You gotta pay to play."
God help (ha-ha) the folks who are both devoutly religious and avid casino gamblers: how can they serve two masters?