I tried to download the podcast via the above link.
But on that page the Buzzsprout player does not appear. (Have verified Phil Wadler’s episode. Everything works, playing and downloading via Share.)
Went to the github page <https://github.com/haskellfoundation/haskellfoundation.github.io/tree/hakyll/podcast/71> and got the Buzzsprout ID (1817535).
On Buzzsprout <https://www.buzzsprout.com/1817535/episodes/18021330-71-stefan-wehr> will stream but downloading through Share is not available.
Got the RSS feed <https://feeds.buzzsprout.com/1817535.rss> and that did allow me to download.
So it seems everything is in place except for the Buzzsprout link in the podcast page.