The HTML source code has a canonical link that points to http://pr-newsroom-wp.appspot.com/2022-07-12/spotify-to-acqu... and which does HTTP/301 to HTTPS version. Weird indeed, and it might need fixing.
(Source: I wrote the original WP/App Engine integration back when Google first launched support for PHP; I also maintain a plugin that does the same for S3, for our AWS hosting platform.)