If the team knew, and did nothing, or even encouraged to exploit, are they involved in crime ? What if it is intentionally designed this way cause someone in the team think that loopholes like that will make money for team, and it did actually

Come on man, lol. Those are some tinfoil hat type arguments. I go with what they said, that it was an exploit. Even the exploiters admitted to it, some of them.

one more edit: it's not 0, cause I personally found few exploits and used it then reported almost all of them

If you want to say they suck at designing games, well thats your right. I just dont see how that justifies those that took the money.