The situation both here in the UK and in the US (possibly in Europe too) is that the fundraising industry is going through a difficult time, what with the Olive Cooke case and the issue of cold calling that is currently being addressed by the UK Government, so charities don't really wnt to be linked to people or events that have made negative headlines.
Once the new legislation, both Governmental and industry has settled in, maybe they will feel more willing to work, to an extent, with these more controversial issues/people.