It's going to be hard to teach english based classes when the teacher effectively cannot use a specific word for many common uses in the english language.
These are guidelines for human resources, and are used for announcements by that department and job listings and such. It has nothing to do with teaching classes or the like, and nobody's going to be kicked out of the university for saying "he."
I know you won't be forgeted reading this but mainly for everyone else who couldn't be bothered reading.
edit: this page ninja appeared on me so what Magus said but ye