Not sure why it's doing this, but can confirm that my laptop thinks the same thing when downloading it. Nothing's been changed in the files though, so can confirm it should be fine.
EDIT: Evidently the way downloads and .Exes work with windows is that once they hit a certain download threshold, they get logged, and since it's a smaller download size with a large burst of downloads, it probably is getting falsely flagged as a virus.
Scanning both the original zip and the downloaded zip on my laptop with Bitdefender says both are clean.