Battle.net-Setup.exe has a different file hash on each download?

Bug Report
If I download the battle.net installer from https://www.blizzard.com/en-us/apps/battle.net/desktop and then hash the resulting Battle.net-Setup.exe file with SHA256 it will have a different hash each time I download it.

For example, using PowerShell's Get-FileHash and SHA256
Battle.net-Setup.exe will have the hash: BE304F3C83A73DAF79331FD20119174967BB47D9248A48CB6815E60BE80F1070
If I download the installer again and hash it again it has this hash:
E601FAF49260AA1425A532ECB61E3D20BA6AF303FF4BFEDB8A372F5E27874A8A

And so on, each new download of the installer will have a different SHA256 hash. Is this intentional? It makes using sites like VirusTotal pretty much impossible as they're based almost entirely based around file hashes.

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