Unsurprisingly the title is misleading... if you read the article then you discover a better title would be
Windows 10's built-in antivirus can now be used to download files which will be scanned by the antivirus
to quote the article:
Defender will still scan files download through this method, so in theory it should still protect against malware. And secondly, this would need to be initiated by a local user.
‘What is this bullshit that you people are doing?’ The worst criminal in human history, undeniably. Beating and Gassing Americans for Jesus! Ain't no tweetin, in jail jammies!