If "he" refers to ryzaadit, he did not make a mistake because he said something based on what is written in the KYC policies page. What I can assume here is why the KYC policy page use "fiat", maybe chillistake was purely fiat casino before they started to add crypto currencies as payment method. However, we should not hope too much even if casino claim themselves as No KYC casino because once a casino is licensed, there will be always a chance for the casino to request KYC from their players.