They explicitly mentioned that they are still considering applications in the reply email. I think we should all wait before making any further assumptions. I'm sure the admission officers are significantly affected by COVID. Tbh, I'm not too sure about the waitlist ideas. I think sure some of us are waitlisted, but not all; I think some of us will be accepted, some will be rejected, and some will be waitlisted. In previous years, I don't see this much people waitlisted on GradCafe.
Well GradCafe is a small sample, but distribution should somewhat reflect the population distribution.