2023 was the first year UW was on the common app so one theory could be so many more applicants applied who just applied since it is easy to check the box, but not sure.
It has been almost a week since the 6/1 deadline so hopefully we hear something soon.
S24 got off the WL last Friday, June 14 and enrolled the same day. The letter said he had until June 28 to decide so maybe after that date there will be another wave of admits after they see how many enrolled.