Interesting data. Especially since Stake occupies more than half of the market. The difference between the first and second positions is even striking - fivefold. To be honest, I would never have thought that such a monopolization would have taken place in the gambling industry.
I wouldn't say that there is a clear manipulation, we don't know if the data is that accurate in the first place. Assuming it is, gamblers though from time to time shift casinos too so maybe in the next released of the data it could be very different result.
As for Stake, they are one of the first, the prime mover in the crypto base gambling platform. So there will be no surprise that they occupy the top spot. Similar to Bitcoin or Ethereum as prime movers in crypto as well.
Well, I don't doubt the reliability of the data. Perhaps this is data for some region, and not on a global scale. But even if that's the case, it's still an amazing result. I knew about this casino, of course, but I never thought it was such a big casino. Just think about it - occupying half of the market in such a highly competitive industry is a serious indicator.