The partnership was legit, but the project was not so much.
I would have guessed Binance would do some due diligence and be sure they would not be promoting a shady project, before releasing a tweet/x doing some advertisment like that, to be honest. No wonder why they tried to erase all kind of relationships with those people, to avoid being held to account.
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Anyways, if Binance wanted they could easily make a partnership with already big and reliable casinos which have years of proven experience and are not scams.
They wanted their own, it's one thing to have a partner casino in which you're just in the middlemen, it's a different thing to have a casino that is 100% dependent on you, the funds are basically in your control since they use your centralized coin, and even if they wanted out of it you still have the final say, it would have looked really good on paper, but Binance screwed up on the adoption, they thought everything they hype will have millions of users, well, wasn't like that!
Maybe the removal is due to people showing lack of interest on their partnership or maybe their contract already end. That's why it ends up to that situation, also maybe binance just delete all the tracks of their past partners once they already done doing business with them.
They've lost their gaming provider and they didn't renew their license the second year, I don't know if the project was entirely financed through Binance Labs but one thing is certain, they did run out of money and they weren't making a penny.