Sorry for the delay. I tried it on my ipad…success!
However, each time I type in the URL on my iphone, the message now is:
Unable to Follow Podcast cannot be added because the server or feed cannot be found.
I am trying to type very carefully, but maybe it is a user error (!), because the IPAD Url worked fine.
I will try to copy your link and paste it in & see what happens.
IOS: 14.7.1
IPhone 11 Pro