As you can see, Compared to BNB Minimum ($9.97) Withdrawal limit with the ETH Minimum Withdrawal limit ($125.24) is way high. Suppose a Player has $50 in ETH. At this moment, That Player has to make it $125 to withdraw it or lose them all.
Transaction fee affects the min withdrawal limit. Because casino can not allow withdrawal amount that is smaller than transaction fee.
They can waive transaction fee, charge cheap or expensive fee and you can look at the min withdrawal limit and think of your plan with deposits and withdrawals.
This fact of expensive transaction and withdrawal fee will result in more chances for altcoins with fast block time and cheap transaction fee. They will be considered to add by casinos and exchanges that in turn can help them to have support by community, investors, users, gamblers. They will help those potential altcoins to grow.