In my country about that statement is the opposite, "If you stop to gamble then you have been declared winning" This is more logical than looking at the opportunity at a glimmer of light of money, you can't see and very sudden.
The statement on statement OP was misleading in my opinion, and that thought was usually eaten by gambling addicts, so they spent the money he had to get the divine light from the tunnel described, but actually it was a statement to make them enthusiastic about spending money in gambling, and or trapped Those who have ignorance and have no regulation in managing finances.
It is indeed misleading and everyone will think and act to get the light -10% win from a 100% win rate, it is a stupid thought if you want to get a win, and maybe it is the words of a gambling influencer who wants to trap people with his stigma.
So it's important here to have the sanity of thinking as you say, so you don't get caught up in stupidity like that, and it's also important to make gambling a place to seek pleasure, not a place to earn money or seek victory, so that everything is controlled within the limits set before gambling.
It's difficult to get people to think that far, and maybe they don't even realize things like this. However, the realization must be sought to come to them.
Indeed, it is difficult to have a sane mind in response to this, especially those who have addiction at a more severe level, will usually ignore the words of people who give good advice to them in response to gambling.