If you cash out by bitcoins at a casino and the casino doesn't add enough fees for fast confirmation. If the price of bitcoin drops a lot. Should the casino be held responsible for the price differences in which you cashed out at and the current loss in btc prices?
I don't think you're being fair with the casinos because you're receiving your due won amount in bitcoins and not in fiat so what I will suggest is for the casinos to add options for quicker confirmations where they will deduct a part of your won bitcoins into sending it quickly into your wallet.