This is pretty much out of the general community's hands now.
There is no strict definition on what a ban should be, and I'll let everyone know that there are actually more permabans than ones set to run out eventually. Besides, a few of you shouldn't even try to defend him while you were helping him. If you were there and you did absolutely nothing with something that I think a 2 year old could see as probably being wrong or otherwise unfair, how can you possibly defend the guilty? We've got a mountain and a half to stick up against knt, nothing to defend him. See Cevius's post for further details.
Complain all you want, the law has been layed, and it probably won't be changed.