I always thought that this process was automated on website. As it seems, theymos has to log-in and manually edit the template. By the way, just checked Bitcoin.org and there hasn't been done any update since the release of Bitcoin Core version 22.0 As far as I know, user called Cøbra owns that website. His active on Twitter recently so idk why he didn't update the version list.
You are looking at the wrong website.
I suggest you to look at bitcoincore.org
The link in the colophon is correct, it actually points to the tastes release.