Of course they understand!
It's a Free-To-Play (also known as Pay-to-Win) type of monetizing application, and the secret of the game is precisely to keep people speculating.
Gamasutra - Chasing the Whale: Examining the ethics of free-to-play games
It's the first football manager in the history of games where game mechanics is intentionally secret and where the developers themselves intentionally launch confusing soundbytes to spread speculation.