I feel your simply redirecting. if you dont understand the moral/sportsmanship issue or the fact that he was warned and given opportunity to play in a better manner and either ignored or did not understand thats on him. Rules are still rules and direction was given from the admins about poor behavior, a wiser man would have played in a more straight and narrow manner and asked other players if actions where ok first before performing them.
If maga really wants to play again he could just buy arma 3 again, if it meant that much to him and play under another name, thats on him.
If admins feel hes too high risk to reoffend, that's on him.
Personally I would have to agree with the admins on this one, if they feel hes not gonna comply or lacks the English language skills to understand rules and regulations and direction given then he needs to play on a different server.
We welcome all nationality on the server but its up to the player to act in a fashion that benefits the server and be able to follow directions and warnings about behavior given in English and up to them to make sure they fully understand the rules. If it feels like a unfair advantage or that it is wrong or disingenuous/immoral dont do it, or ask one of the vets or the forums for info.