The latest revised position by the media on this, as discussed on Sen this morning goes along the line of this:-
'Ok everyone, we accept that not all the booers are racist. BUT if you boo from now on, you are providing 'coverage' for racists'.
So if one boos Adam Goodes because he stages for another free kick, they are guilty of harbouring racists. But only from now on, and not before this weekend. And basically, it's this way because we have been told it is.