AB being at the helm of the Aussie ship didn't (or couldn't) stop the onslaught of sledging. And he cannot now say that HE did not know which words were offensive.
I suspect our mature discussion is not going to be enough to change the way Aussies sledge. I'm afraid Indians will still have to go on displaying their maturity. I'm also sure Aussies are going to hail them as being sporting enough and being great people etc. etc. till Indians show another streak of winning (or until another Sourav comes along)..
Till then: Lord forgive them for they do not know what they are doing.