I don't get you, did you mean that there could be a betting condition where you will use your own money and still be tied to a difficult condition of 5x before you can withdraw? If that is the case, then it's so absurd but I've not seen a thing like that in my gambling experience.
It's not absurd, most casinos have their wagering requirements before you are able to withdraw and that's a normal thing as they're setting rules for their own platform.
No one is saying casinos do not have their requirements and this can even be different from the generally known ones at times, but still, what you view as not absurd is actually absurd to me, casinos can't be treating me unfairly with bad conditions and expect me to stay when I have an alternative that will treat me better. And in case you did not understand it well, this is not about a bonus requirement but your own money. It's insane to wager x5 of my money before I can withdraw it and I wonder why you think it's normal in this competitive world.
I've experienced worse than that with some bonus requirements, which is fine, but it's also the reason I do not give in to bonuses anymore. My real money has to come with some respect because it's not free and this is why I take my time these days to read the Ts&Cs of casinos before dealing with them.