The links to the file downloads on 7zip.com all point to 7-zip.org. Example: https://www.7-zip.org/a/7z2501-x64.exe

Did they change it because of the negative publicity (Reddit) and will probably change back soon to the malware links?

Maybe that's how they don't get banned by their hosting provider. Once reports start coming in, they pretend to be a honest establishment.