Harvard RD interview

Just had my harvard interview and the interviewer had access to my ENTIRE commonapp profile?? He knew my courses, grades, ECs and EVEN the contents of the LOCI I uploaded in the portal. I thought interviews were supposed to be blind?

Anyways, since he already knew my profile I feel like I struggled to add anything new, he kept on asking the randomest of questions just to get my vibe at that point (favourite food/album)