This article is a mess. It's talking about a whole variety of NTFS redirection features, but only some of them existed in 2000. It also got me confused, I should have said 'those reparse points', not just 'reparse points'.

In 2000 you could make junction points but they only worked on directories. 2000 also supported multiple hard links to a single file. But what the article talks about, individual soft links for files, didn't get added until Vista. Despite it being a standard feature on filesystems going back decades.