It's one thing to do a paid promotion through a promotor... but to lie and act like it is their own money they are gambling with.. It's not only immorally wrong, it's possibly illegal depending what jurisdiction the streamer is in.
I think these types of marketing tricks should be regulated by law. I have not heard of it being forbidden anywhere. However, it should definitely be regulated at least to make sure that the person who will watch the stream is informed that it is a promotional video and not a real game.
Well it has always been expected that there is a trick from the streamer and it should always be doubtful about it when they are using a huge fund.
I think that is right, considering this is illegal because it seems you are misleading people to the fact that you are taking advance their weakness, they think that the streamer and willing to lose a huge amount and gain profit. Perhaps they are desperate on their strategy, and a marketing strategy like this should be banned in any viewing video platforms.
Unfortunately, it will not be easy to completely ban such streams. Casinos can create these types of videos as an instruction for new users, and this is definitely legal. The point is for someone who watches to know that the person who is playing not for real money and winning is not real. If someone thinks that you can win a lot of money in such an easy way, he will certainly want to try, unfortunately in reality it is not that simple and it is unethical in my opinion.