They got called out for doing that, what they’re doing isn’t exactly making the government happy, as you can read here.
https://www.reuters.com/sports/soccer/english-premier-league-clubs-warned-over-promoting-illegal-gambling-sites-2025-02-12/ Britain's gambling regulator said on Wednesday it would write to three Premier League soccer clubs - Everton, Nottingham Forest and Leicester City - warning them of the risks associated with promoting illegal gambling websites on their shirts.
The UK Gambling Commission had said earlier in the day that Stake.uk.com would no longer, opens new tab be a licensed gambling website following an investigation and added the operator, TGP Europe Ltd, will shut down the site by next month.
I'm not really surprised to see the UK government going after what they believe to be illegal gambling websites, but these are simply just casinos that are in violation of the UK's regulations.
Perhaps it would be better for BC.game to have explicitly made it clear on its front page that gambling from the UK is strictly prohibited.