Since the moderation log is hidden I can only guess what happened. But last year we got the confirmation of the removal via email and the explanation was that the post wasn't "that interesting". https://twitter.com/chadwhitacre_/status/1716947994338021885

I expected this again and thus kept monitoring the index page actively. The post stayed on there for quite a while and suddenly dropped off to the second page and then a while later completely.