Serena Williams little Victory Dance

Crip Walk - Serena Williams Dances the C-Walk after completing the tennis gold medal and golden slam at London 2012 Olympics.
Serena has been harshly criticized for doing this little dance after winning her doubles gold medal..this dance..the crip walk which originates from notorious gang feud between bloods and crips.

She explained herself saying 'I didnt know what to do, I was so happy I didnt plan it'
I dont get it..Its just a lil dance! Am i missing something?...GO Serena..