Because I thought that generally alumni interviews weren’t all that important for most schools
Reposting from an earlier thread:
Certainly from a quantitative standpoint, the rating will not carry much weight, if for no other reason than because every interviewer grades differently, and there’s no good way to standardize that. However, the writeup of the interview can be very valuable, depending on how good a job the interviewer does. It serves something of a similar purpose to letters of recommendation, humanizing and contextualizing the applicant. It’s just that in this case, the author/evaluator is someone chosen by the University, rather than by the applicant (I know you don’t really get to choose your school counselor, but you know what I mean).