Right click this link -> https://stackoverflow.com/review/first-answers <- and open it in an incognito window (or whatever the FF equivalent is). It works.
Waffles said here that the review page should be
completely shut for any users with less than 1000 rep, including making it not accessible via the URL.
I believe that the above quote was just an opinion, but I understood that the previous requirement was 200 rep, and, if I remember my mathematics correctly, 0 is less than 200.
What's the expected behavior here? I'm quite confident that this page shouldn't be accessible to unregistered users, so I'm marking this as a bug.