I was trying Rainbet today and realized that most gaming providers are completely blocked in the site.

Hacksaw, Nolimit, Pragmatic, Evolution are all restricted and you can't access their games at all. Even if it's slots or even live games, it's all blocked.
Why is that? I read recently that Evolution games was threatened with disciplinary action by UK authorities for allowing their games to be played by punters in the UK and especially by unlicensed casinos.
https://next.io/news/regulation/ukgc-commences-review-evolution-licence/It's even possible Evolution gaming could lose its license in the UK due to this reason. However the fact of even losing unlicensed casinos is going to hurt their revenue massively and already the company's stock has been falling.
I'm not sure how a crypto casino would be affected by this. I'm personally located in Greece. Are these major providers now restricting their games in EU countries too?
On the other hand, when I go in Stake I can see these companies available. So what's going on here?
Even popular casino limits Europe player to access the casino so I’m not surprised if some of the game providers limit them since UK and EU has their own gambling license which is required for operators to acquire before they can operate.
They are almost same with US when it comes to regulation with online casino so popular global brand don’t dare to touch them to avoid legal problem in the future.
I believe most the Curacao license casino ban EU players.