I think it was wrong, an easy stunt, probably predicated on Trinny and Susannah dressing The Long Man of Wilmington up as a woman. I had problems seeing what was wrong as it is only for a day but the word that kept coming to mind was disrespect for an ancient monument, even though the cause may be good the action was cheap and of course will lead to much more being done in similar vein in the future - no way.
The Long Man of Wilmington is managed by the Sussex Archaeological Group and they later apologised to the Druids for the stunt, who also complained, it was probably a valid response.
Health warnings can be put on television, radio and billboards, the few who will look at the poor old giant will just have a giggle, ....