KYC requirements are not a matter of whether a person is committing money laundering or not, but because of the requirements requested by the casino because of a license that is used or it could be to give the casino certainty when someone makes a large withdrawal to avoid gamblers who use the casino to launder money.
It's possible for a normal player to play without having to provide KYC, it's just that he needs to find and use a non-KYC casino, after all there are several well-known and trusted casinos that don't enforce KYC.
But in the future I believe KYC will be enforced in every casino and it looks like it's really going to happen.