That's because the soprano sang the role of Cleopatra when the David McVicar production premiered at England's Glyndebourne Festival in 2005 and performed it again when the staging traveled to the Lyric Opera of Chicago in 2007.
Michael Grandage's "Le Nozze di Figaro" is Glyndebourne's seventh production of the Mozart opera with which it opened in 1934, and the best of the many of those I've seen.
The technology is thoroughly tested, and has been proved successful by the Metropolitan Opera in New York, and by Covent Garden and Glyndebourne in England.