The casino you are promoting says NO KYC, so most likely they aren't a registered casino and has no license.
They actually have a license, although it’s a bit odd considering there are plenty of casinos advertising themselves as "no KYC," yet they still hold licenses.
As for casinopunkz.io, according to this review site, this is the license detail.
https://cryptogambling.com/casinos/casinopunkzYou’re right, this is same license with some new casino like Metawin which is the most noteworthy casino that use this license. I bet the regulations of this license provider is less strict than Curacao that’s why new casino choose this and at the same time can offer a less restrictive terms such as mandatory KYC which now the new norm for Curacao license casino.
I think this new license provider is a nice alternative in case Curacao license becomes strict which is currently happening on popular casino nowadays.