The big issue here is the use of the term “Crowd Level”. Crowd Level for TP has always meant “overall wait times”, not “bodies in park”. Unfortunately the actual words imply that it is a measure of bodies in park, and people often read it as such. Although there is a rough correlation between wait times and bodies, there are many situations where there is not (like your EP example).
I supposed that calling the measure “Wait Level” would reduce this confusion, but TP has been using this term for years and would probably not want to change it. @len, thoughts?