The funny thing is that everyone knew the 79th was going to use invites. Yet they still got accepted in the RGL. Now that Movement got caught red-handed, only the player is punished. What kind of no-sense is that?
As Knightmare pointed it out, you're extremely naive if you think that's going to prevent Movement from cheating again. Only a ID system is sufficient enough (and still not perfect) but you don't have one. Just remove the 79th from the competition. They don't bring anything positive to this league, will just cause you several headaches to find out if they're using invites and at the end of the day if after being accepted, Movement still continue to behave like he always did, there is no reason to allow him and his regiment to play.
That's the minimal respect other regiments deserve for playing by the rules.