In fairness, though - I wonder if it's more to do with the massive dose of nasties that you have to take prior to a bone marrow transplant killing off the HIV as well as everything else that it nukes?
I wonder how many bone marrow recipients from donors who don't have the CCR5 mutation display a lack of virus cells in their blood?
Hell of a discovery though. I hope it proves useful, because nobody else appears to be making any headway with HIV/AIDS research at the moment.