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. As for stake signature campaign participants, we're just fortunate that they've probably made an exception for their participants and not required to cast any bet for the withdrawal. But for the others, if you're a newly registered account and you have deposited and then tried to withdraw it asap without doing anything or just betting under their wagering threshold, they'll require you to wager more and could even ask you for a kyc for doing that.