So no centralized casino is really 100% KYC they must have a policy on this, but what is displayed here is a little different so it will be a little confusing.
Maybe OP will clarify about this confusion issue soon.
There are a lot of casinos with this same policy, they don't push all the users to do kick, but they have the KYC as a legal defense for some scenarios where the casino can get in trouble in a legal way, let's say someone start using the casino for money laundering, they need to protect somehow against this kind of activities.
So, if users don't do any bad moves, then the casino will not ask for KYC.