Jenny, I suspect we simply see the world in very different ways.
Either you believe in equality of opportunity or you don't....reasons why it may be considered important include, giving a wider group of society access to interesting and/or lucrative careers and from the employers perspective trying to recruit the best person from as wide a pool as possible, giving them access to the best team possible.
.....returning back to AI, if the argument is they could not in 2011, find any equivalently qualified women and/or people of colour, in the sector of media and human rights....then I simply don't believe it. Particularly, since some of the recruitees don't have a particular record in human rights. Which to me suggests they did not find the best people for the job, and by casting there net wider and using strategies to recruit better, they would have got a stronger team with stronger relevant experience.
If the requirement was just to be a media bod, human rights experience not required....then I again don't believe they were not able to find any women and/or people of colour to recruit. Where I suspect we disagree is that you appear to feel it would be unfair to swap some of the white men out of this or any all white/ all male team, whereas I would say that it looks like the recruiment has been from a too small pot, which heightens the risk that the best have not been recruited in this process...in which case I personally would have no issue replacing one or more of the white men (during the recruitment process).
..... the result of this recruitment exercise also portrays AI as being somewhat retrograde as an organisation.
...BTW your final analogy seemed to suggest that because not all white men could apply to the job, it somehow negated the debate about including any other group...is that what you meant?