The cake was for a private event to commemorate a significant date in the gay Calendar - describing it as part of a campaign is not unlike describing Christmas as part of a Christian campaign, or Thanksgiving an American campaign.
As it happens, it doesn't matter - it was discrimination and was judged to be just that - a fact that should be cause for celebration and not 'back-to-the-good-old-days' bickering.
Hopefully, Friday will show another giant step for mankind (and womankind, of course)
Jim Carroll