When I first saw the photos of the companions, I thought it was unwise to have this band of advisors, all of a similar age and ethnicity. If they are singularly friends, then their 'appointment' needs no fanfare: I'm sure that Princess Anne, Sophie, Countess Wessex and the Princess of Wales all have friends/ buddies, but these are personal and kept private. All role performing companions ought to be from a trained background and able to contribute some know-how. The Monarchy has shown itself adept at adapting, and it has to shape its role now to reflect diversity, to utilise ceremonial forms to dignify overseas partners - such as the South African President, and to lead on promoting inclusivity in Britain.
If there is to be any role for the companions, then there needs to be measures taken to ensure they have the background knowledge and information to transact their role well.
Lady Susan Hussey ought to have researched and rehearsed what she might say to the delegates ( who, after all, are doing valuable work) going straight into questions about what their organisation has been doing recently and what do they hope to come out of the conference. Lady Hussey SHOULD NOTbe asking invitees who they are: she should have already known.
Age is a thief of so many faculties, and I would like to think that Lady Susan may be struggling with making her meaning clear, and may have wanted to contribute an informed or valid comment about the African traditions of the Northern Nigerian region and knowledge, which Ngozi Fulani's name might have brought to her mind. but for onlookers to interpret it that way would be very generous to the official, and would seem to be turning a blind eye to too much obvious intent to disparage, to whatever degree, e.g. the comment about seeing that it is going to be a 'challenge' to get her answer. Very insulting, as far as we can judge.
As another poster said, if Lady Susan's role was to make polite, ice breaking conversation, rather than to gather feedback on the day, then the first rule of small talk is to go where both parties want to go with the topics - don't persist in your line of questioning when one party is resisting or expressing discomfort.
Ngozi Fulani is clearly articulate, and discriminating, knows a lot about the Queen Consort's favoured cause, and so the best thing that the Palace could do is to offer her the role of one of the companions - a role which should now be adapted should and made into a more professional and expert one.