When I spoke to admissions, it sounded like the accept a pretty consistent percentage of interviewees from each interview date, so everyone should have a relatively even chance, regardless of when they interviewed! From my understanding, they wouldn't get to the last interview date and only have like, one spot available if that makes sense. You can always reach out to admissions directly, Michelle is incredibly approachable, helpful, and seems to know the OT department like the back of her hand haha