There is obviously some reason for them to try and hide the fact that they are a subsidiary of 1XBET. However, it's quite futile considering all the information that is readily available to anybody who digs a little deeper. They may be concerned about 1xBet's website being blocked in a number of countries, including Russia, the USA, Ukraine, UK, Spain, France, Italy and many others; and that the company is not authorized for gambling in Russia by the Federal Tax Service, as with many other countries. ^{[ source ]}
But it's just my wild gues ...