I agree that schools set “why X” questions to test if applicants are really attracted, sincere, fit and did their research. And for this less-than-100-word question, I don’t think it’s a good to describe a particular program or site/activities on campus. Instead, write something thematic, some values/qualities of the school: cooperation, sustainability (environmental friendly, close to nature), service the community, etc. Maybe write about how details (facts and news )about the school SHOW these values. This abstract question really tests if the student did his/her research.
That’s what I realised after a few days.