He is cheating with the brumbar and the sniper plays, but this whole thing has been blown out of proportion.
At most he should've gotten a slap on the wrist
If he actually was cheating (Which apparently is the case) I can't say I'd agree that he should have gotten a "Slap on the wrist". Cheating is, and should be, a bannable offence, you're ruining others' experiences, and if you're doing so in a tournament of some variety, you're basically stealing from others.