To me it's not a podcast if there's no RSS feed available. I don't want to have to through some crappy platform or app. I don't mind if it's "premium" in the sense that the feed may be protected by standard methods, special URLs etc.
I have already forgone interesting sounding "podcasts" for that very reason.
The social network of the future: No ads, no corporate surveillance, ethical design, and decentralization! Own your data with Mastodon!