By the looks of it we could some of them probably fair lol

. Joke aside I have to say that there are so many methods that casinos scam people that provably fair became a lot less important part of it. You deposit your money there and until you withdraw it there is a chance that they could scam you.
Not all gamblers care of provably fair or do their checks on provably fair of casino games. Not all crypto users know about non custodial wallets or know how to check transaction txhash. It is hilarious but it is fact. Many people do many transactions but they are panic when they don't receive coins in wallets and when they request support, they don't know what is txhash and how to get it for details of support ticket.