If that is true, then that could bring a couple of future problems to this casino, in my opinion. I understand they want to implement NFT's to the casino and the VIP status, on paper that is ok.

However, in reality non-transferable VIP tiers means that each gambler needs to wager to reach a level and with the high wager of a single user the casino wins revenue. If the VIPs are transferable between users (on-chain) sounds like a lost opportunity for this webpage to incentivize a new user to wager his way up to VIP.

Or am I missing something?