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!
I was trying to touch those two subjects many times...
For example, when I was asking really hard questions on NexusEarth ($NXS) Telegram group chat instead of being kicked out I got proposition to join the team and use there my passion and knowledge. What a difference when comparing to FireLotto!