It was initially a chaotic mess as the Toy Spartans assaulted not just the cultivators but the monsters as well. Even though this was supposed to be a place for the monsters to relax, Jin intentionally made this place for training alongside the cultivators to learn their tricks.
The System had a lot of information on the cultivators based on the manuals Ming passed on to Jin as one of his rewards for achieving his cultivation grade. This information was supplemented from the daily input from the cultivators fighting in dungeons too, but it was never enough. The System also wanted information on how the monsters could cooperate with the cultivators.