Though this may be the case, a concept of a "Halal" casino is potentially bound to fail. Imagine, naming a gambling casino in a Muslim term definitely spark red flags on it. I doubt that Muslims and other people would even attempt to try this without going against their beliefs.
If you see any business started with the name of religion and their religion forbids it, it's 100% scam. They are just using the name of the religion to get attention and misguide people. The halal casino is not possible, nor the video mentioned in the OP is about the halal casinos. The title is 100% misleading, and I requested OP to change it in my previous post.
They might use the name as Halal casino so they can attract Muslims to play in their casino. The Truth is it's Haram in Islam and practicing Mulism won't play there because if someone do business with the name of their religion, it's a trap.