By way of a more substantive response, I understand that the BBC are concerned about the way the original comes across to today's teen/young adult audience. They have a point, insofar as it's good that younger generations may be actively steering away from some of the stereotypical mysogynistic insults of previous generations.
However, before you all jump down my throat, I think that approach is wrong. This is not a song released now, for consumption now. It was released a long time ago and is played out in the environs of a backstreet boozer. I think that if today's youngsters choose to lift their eyes above the parapet of today's music and interact with songs of a different time and culture, then they should explore it warts and all.
PS. the original will still be played on Radio 2.