I guess it is no longer an issue in this crypto gambling industry since few years back when most licensed casino has to follow the regulation/rules from the license.
I wouldn't say that it's no longer an issue since many gamblers including me are actively avoiding sites that enforce mandatory KYC.
Looking at the information about this awards, casinos or any other related gambling sites (affiliate or provider or something else) need to register to the operator first the the team of the operator will do check/investigation to decide the registered parties are reliable enough to be nominee or not.
In this case the operator of the awards is the Affpapa iGaming, perhaps the casinos you mentioned above are not registering themselves to the operator, that's why we cant see them in the nomination list.
Correct me if I'm wrong about this procedure for the awards.
Your points make sense. I guess many crypto gambling sites don't really care about these awards which is why they didn't bother registering with them while few of them like Roobet care about them.