Podcast/Spotify version of videos? (Patreon)

Ok - I think i've figured out how i'm going to go forward with uploading my videos as a podcast, too.

For $5 Patrons and up - when i upload my video on youtube the audio of the video gets posted on patreon straight away once the video goes live. 1 month later - that video will get posted publicly on spotify and all the other places for podcasts. This means that there is still value for patrons that are interested in having the .mp3 but also puts my work on other platforms eventually.

That's how i'd like it to be I think - now, the issue of "what happens to your old uploads?" still exists. Ideally i'd like to have my public podcast uploads a month after my youtube uploads ... so a weekly thing. So maybe I could start ... as a test by uploading my past videos for a while and see how things go? - treat the first couple like a test and if it works out ... incorporate this into my main workflow.

what do you think about that? useful or no?