It sounds quite amusing that casinos would implement such restrictions, as they could potentially diminish the casino's profits.
I also saw it as a ridiculous act from the gambling platform to engage on this act, making money in gambling comes through many forms and what the casinos target is to have a large number of gambler using their platform and betting with huge amounts, in this lies their own means of earning profits for operating a casino, i don't also think they can make a restriction by placing a limit to the rate of the amount they can use in gambling, this is business we are talking about and the sole purpose for establishing a casino as well as to make profit while gambling without limiting the gambler's interest is something both the casino and gambler would like to see, it's because a gambler can afford a particular amount in using it for gambling, the more they can't afford the money the less they play bet.
When you are involved in discussions on how casinos generate their revenue and income, is one of the essential organs to running a successful casinos, so implementing such a feature to limit the amount of loses gamblers could contain in a moth os something that their will never consider, but the responsibility is now left for the gambler to be able to monitor and controls his gambling urge.
Casino are operated to generate income and that alon have defeated the possibility of ever consideration of such feature, but meanwhile we have some casino that has sself-exclusionfeature which may not be the same as weekly loss limits but they can help in combating addiction to self exclude from gambling.