While I agree that this year is bound to be unusual, every year tends to vary at each school. So even without a pandemic, it’s not unusual to see a pattern like 50, 3, 0, 62. Often, if there was 0, the school ended up oversubscribed and will deliberately under admit the next year with a plan to make use of the WL to get exactly the number of students they want, but no more. It’s about enrolling exactly the number of students they want, and no more.
This info is very helpful for setting expectations.