The only problem I have with crypto casinos or exchanges is when KYC is suddenly a requirement in order to withdraw funds, i.e., that requirement wasn't made known up front. I've seen complaints about that before and I think the KYC requirement definitely should be made loud and clear before a person is allowed to register on any of these sites.
A lot of problems come from the status quo of victim-blaming the person who gets screwed over because of the ToS of a casino. It's as if people think, "if it's in a contract, it is absolutely binding," with no qualms apropos to the nature and intent of such clauses. KYC processes are also only really applied to winning gamblers, since you don't want to waste money on someone who has already given your casino money: it is both efficient in terms of frugality and in terms of opportunity. I'm sure we can all hypothesize a situation in which a casino could abuse the ToS in order to glean some more profit from prospective players, right?