I wouldn't be so sure she did. This is not the kind of controversy a pop star wants. This isn't Britney's performance at the VMA's in the 90s where she wore flesh colored pants and everyone talked about how risque and hot it was and it made people want more. With Miley people are talking about how gross and terrible and sad it was. This is Lindsay Lohan meltdown publicity.
It may boost her itunes this week, but it's not a good move for longevity.
Which IMO is what she wanted. I don't think she cares about the future at this point