Somebody always takes a hit. The question is who and how painful is it.
The aff takes a hit if the casino carries over, and most of the time there is nothing to balance out a big winner since it’s not balanced against all the players in the casino but merely one person’s players.
So the aff has to attempt to monetize the players that would normally be sent to the casino, pulls the property, and now the casino takes a hit.
Both the casino and the aff have now lost one source of income until the player plays it all back. The casino takes the risk that the aff is happy elsewhere and won’t return.
The vast majority of casinos just takes the original hit and doesn’t carry over.
Many affs just avoid places that have carry overs in the first place.
Everyone has to put food on the table and has to manage this the best way they can.