Not if the player wins. Actually the requirement is double edge sword. Player can win or lose. Setting example my experience. I am currently at a gain now. From 0.08BTC up to 0.8 BTC then down to 0.4 BTC and I decided to stop and withdraw my winnings. I can easily withdraw it because I already meet the 2x wagering thus leaving FJ to lose some amount of BTC. So I guess, to think that FJ set that requirement to make players lose some BTC is a moot idea.
this rule doesn't make sense , Fortunejack is the only bitcoin casino that forces their players to wager X amount before being able to withdraw
what if I deposited 1 BTC , played a little then changed my mind !! this just doesn't make sense
and about the money laundering thing , I'm sure people who want to launder their bitcoins can find way better places to do that
FJ should let players pay the fee and withdraw whatever and whenever they want