When you're able to update the website, for example to update the software or add other games, it means you have a central point of control. It means you're NOT FULLY DECENTRALISED!
You're also keeping the source code of the website secret. This means you're NOT FULLY TRANSPARENT!
Sorry of course, and where is the site and what we add to it. We often make changes and notify investors about this. What we can not change is the code written in the smart contract and the algorithm of the RNG