It's worth pointing out that no legal body has suggested that the Bacup Nutters should not be allowed to continue their practice: nobody with any power has suggested they've contravened the race relations act.

However, I do think it's a BIT of a shame that they don't have, say, anything on their website stating unequivocally that they have no affinity with or for the derogatory practices of blackface minstrelcy.

That would go a long way to keeping a lid on this controversy. They have some info on their origins, but the references to Moorish pirates don't exactly do them any favours from a race-impersonation point of view. It wouldn't take much for them just to make a few things plain, to at least acknowledge that there is something that needs stating here.