Prospect Sierra's smaller than usual kindergarten cohort?
i'd like to learn more about why Prospect Sierra's kindergarten cohort for 2019-2020 is smaller than usual. From what I understand, there is one class of kids as opposed to the usual two classes. The school said it was due to there being fewer siblings than usual, but that didn't exactly make sense to me, as I would assume they could admit more non-siblings in that circumstance (and perhaps not have two full classes, but come close).
Can anyone shed light on this situation? Is there typically more than one full class' worth of siblings in each kindergarten cohort? Is it a one-off situation or more of a longer term trend? Does anyone have an idea about Prospect Sierra's 2020/2021 kindergarten cohort size? Thanks!