I agree with Ian and in my observation, those larger audience based bitcoin podcasts help to boost the particular track played at the end of an episode. The only one I know of is TWiB & I don't listen to bitcoin podcasts anymore, haven't in a long while. I do stream to certain podcasts, I'll boost as well depending on the content or if it's a v4v music podcast. I'll also directly give value to an artist by directly boosting a song that I really enjoyed from podcast guru.
Chad rightfully points out another issue with the two toes in everywhere bitcoin podcasts that use PC 2.0 & also YT, Apple Podcasts & even Spotify.
There are podcasts that strictly play music supported by sats. Find the one you like, tune in & support the show & artists; there's only a handful.
In the end, it is what it is.