I know they aren't pure crypto casinos, but they are time-proven and trustworthy. Some of them are in operation for over 20 years. You only can see the casinos on the page that are accessible from your country.
So, here is the link to the page:
https://casinoroam.com/bitcoin-casinos/I'm really surprised that the list the OP provided doesn't include the name of a single casino or gambling platform that I know. I'm quite skeptical of the OP's list. Maybe they are good casino platforms but since there is nothing to trust us I think they should be avoided. All the sites that are doing well in our forum that have proven to be reliable then I can only trust those sites. Conducting gambling in any unknown site or non review site that be very risky.
He already said the reason why and that is because they are an old online casino. They have grown with the classics and maybe they are not planning of adding more payment methods. If there is one thing that these casino can guarantee then that is their security or fairness. That is again according to the OP but we can always verify it by doing another research.
If we found something suspicious about their operations then we can always report them here to be able to spread awareness about the others because there might be some here who are planning to try a non-crypto casino for some reasons. Non-crypto casinos do have some advantages though.