Looks like the fact that a player had his second ban on the same round in 3 days didn't increase the punishment at all. Nice.
The thing is, we don't really know what happened, do we?
Only the CSR and the owner of the affected account know what happened.
It could be that the ban is for something totally different, and in that case the CSR can apply his/her judgement regarding what course of action to take.
Please note that I don't know anything about the case, I am not trying to justify anything, I am just thinking about possibilities here.
We are... well... I am hopping for a huge improvement in this front with the changes that arrived, but I do understand that it may take some time.
Adjustments will have te be made to fine tune the effectiveness of the system and to improve it.
So far I have heard of different cases where it has worked like a charm!
Let's give it some time and see its real effectiveness once it has been in use for a few weeks please.
At least that is my point of view, I hope some will share it with me. 
PS: Please remember that we cannot speak about specific cases here in the forum.