I don't see 1xBit on the list and I guess it's because it's a known scam site, but I wouldn't rule out that certain scam sites are able to get a license from somewhere to keep up appearances. Or it is common to scam sites not to have a licence?
It shouldn't, if it is proven to run fraudulent practices then no license will dare to support it, in addition the Licensor is threatened with being sued
If you talk about 1xBit then you should read the case of 1xBet wikipedia similar name and similar case but I don't want to assume. I will avoid sites like this and also alert my community to avoid it.
They claimed to have a license, but with their reputation, the license is just useless if I would choose to gamble. There are plenty of sites I believe that have a license but with a bad reputation, maybe gamblers do not sue them but due to the evidence from the accusers, the community tagged them as a bad gambling sites.