Less than expected, perhaps, but not less than than there were.
This seems to be way too much ado about nothing. Unless I missed it, this article doesn't indicate that the numbers were seasonally adjusted.
Kids go back to school and college in August, which means they quit their jobs. Also tourism declines dramatically, which affects just about every business there is.
The numbers were indeed seasonally adjusted. Along with the 4k decline for August, the prior two months employment growth was revised down a combined 81k or so.