IRL, the Pascal players are just guessing at the odds. In the case of religions, nobody know the odds, but people claim to know the punishments for losing. And the punishments are pretty bad. If you do not know the odds, and the punishment for losing is high, it is much smarter not to play at all. Regardless of the possible rewards for winning.
Instead we are being asked to play, and to figure out the odds ourselves, based on very incomplete information --ie tales that seem fictional and have no concrete evidence of being true, and groups of people who all like different stories and who say the stories they like best are true. The religion with the most fervently dedicated believers is the most likely to be true, because nobody would devote their lives to a lie, right?
We are supposed to use that incomplete information to investigate which of hundreds of possible gods are real. After that, we have to evaluate which of the real ones are worthy of worship. Then we are supposed to find out what exactly that god wants in terms of obedience, behavior and so forth. If we choose the right god, we get a big reward. Maybe. It is usually more complicated--not everyone who chooses correctly will get the reward. It is like buying a lottery ticket gives you more of a chance
of winning than not buying one; choosing the right god gives you a better chance
at the reward.
To complicate matters even more, some people say that if you don't know anything about any of the gods, and therefore do not choose any, you are off the hook and might get the good reward anyway if you happen to accidentally do what the correct god wants. But if you investigate lots of gods and then pick the wrong one, it is like buying what you think is a lotto ticket, and it turns out to be a land mine or a venomous snake.
The outcome of choosing the wrong god is guaranteed to be really, really bad. If you choose, you damn well have to choose correctly! If there is any
chance that the correct god will let you off the hook for being ignorant and not choosing any, that is the best possible course of action. Stay away from all knowledge of gods, because once you start learning about them, your chance of picking the wrong one soars astronomically as the number you investigate increases.
If we all knew for sure which gods were real and what all the various possible outcomes and scenarios were for worship vs non-worship, it would not be a gamble and there would be no need for a wager. We would just go for that one and be done with it. But that is clearly not the case. We cannot possibly know the outcomes or the odds. Therefore, we are smart not to waste serious time on it. Joking around on the internet a few minutes a day discussing atheism with a few people is nothing compared to spending a lifetime actively pursuing a possibly non-existent deity.
There are so many things that have better known outcomes
that people could be doing with their time, money, etc. than trying to learn which of lots of different gods is real, worth worshiping, etc. And that is what we atheists do.